Heaven Shall Burn

I'd previously mentioned Lunaescence here and given the link, just in case there was anyone else who remembered it and wanted to go back and look or was an author who wanted to rescue your stories from there.  I'd handwritten LotR fanfic long before I knew the word fanfic was an actual name for things, but the first place I actually read any was Lunaescence (I think after I'd gotten into Death Note?)  For those of you who'd never heard of it, it was a primarily xReader site focusing on anime and gaming.  I also shortly found FFN, but while that was a favorite of some of my friends (who considered Ao3 "too bourgie" because it required an invitation to post...when I applied for an invitation in 2014 it seriously wasn't that big a hurdle) and I found some stories I liked there it didn't exactly feel welcoming.  I didn't directly notice the purges but I did see some of the "quality campaign" harassment from Critics United and figured homophobes had just harassed people into taking their stuff down, and it never really felt all that welcoming to me.
Anyway, here's a working link to Lunaescence under the Wayback Machine (and I can confirm at least a few of the stories still load, even if I haven't done a deep dive): https://web.archive.org/web/20171222042657/http://www.lunaescence.com/
There is, of course, here on Dreamwidth, though finding stuff unless it's listed as an interest can be a struggle.
Lots of people, including me, have begun posting on SquidgeWorld, though, again, be kind to the server, singular, and maybe throw a donation their way, given that they weren't exactly prepared for the deluge.  My account name is the same as on Ao3 (I'd change my name here but I don't think I even can; iirc it was a reference to a line in early Moffat Doctor Who, before I realized I loathed him with the fury of several suns, and thus I prefer arcanedreamer at this point).  Though I do hear its captcha is not especially accessible.  Link here: https://squidgeworld.org/users/arcanedreamer/works
Some BtVS-specific fansites I read: Spanderfiles (if you're just a reader, they do have a captcha but there is a 'click to hear the audio' option for it, which is hopefully helpful), mostly Spike/Xander with a small selection of other ships specifically, and no, I'm probably not going to tell you my faves, just say that their categories are actually pretty good for going right to what you want.  Some stories are linked offsite and some links go to defunct Angelfire sites but I can confirm that at least one of those was saved in the Wayback Machine for reading, so.  https://spanderfiles.com
and Twisting the Hellmouth, which largely focuses on Buffy crossovers but has other things too: https://www.tthfanfic.org/
Doctor Who: Covering a wide range including Original Doctors, the site I know as Teaspoon (to the point that when I remembered the site's existence I found it by searching 'doctor who teaspoon fanfic' because the header says 'A Teaspoon and an Open Mind') and most people know as Whofic (because that's the actual site address) is a good source there.  https://www.whofic.com/
Along those lines, if you like alternate Doctors (or Time Agents, yes there's an actual Time Agent show with decent music) there's a whole host of Doctor Who fan productions out there.  Though sadly several of them like a gay Doctor I followed got taken down in the years since.  Many of which, dare I say, had more hearts and soul in them than the Moff's era. Many of them are listed in a wiki:  https://dwexpanded.fandom.com/wiki/Doctor_Who_Expanded
Going back to Fanfiction.net, it wasn't actually too bad if you wanted Gen or mostly Gen stories in very specific fandoms.  And yeah, searching for specific crossovers is actually a lot simpler.  That being said I might suggest going into your browser settings and printing to pdf if it's, you know, something "against ToS", like more mature content especially queer mature content, because while the mods have been asleep at the wheel for a while, you never know.  https://www.fanfiction.net/
You might still might to find some stuff on Livejournal as well, though I would advise if you do find anything save it locally to your device as well, as the Russians would probably like to purge much of the content.  Some of it might have been migrated to Dreamwidth as well.  One of the things you could look into is part of fandom history, the practice of the kinkmeme, a place where people would anonymously list prompts and others might fill them (though anonfail occasionally unmasked readers or writers).  It's not all kink or even risque; some of the prompts included very gen activities like cooking or group bonding.
(There's also a lot of stuff on Tumblr though as I rarely interact with it since I don't have an account, I can't really speak to that.  Same goes for adult-fanfiction.org; most of it is locked behind an account I hear.)
There's probably also other stuff available on Fanlore as well; while they don't have fanfic directly, they can point you to more specific archives.  I just tested and yes, you can put in a ship or a fandom and it will give you a list of resources including specific links for ease of searching.  (Thanks again OTW!) https://fanlore.org/wiki
There's always new shows, new games, podcasts, etc.
Aaaaand, for non-fanfic:
The Internet Archive does have a huge amount of anime, TV shows, books, etc.  It's not all just the Wayback Machine.  https://archive.org/
If you're lucky, you might have a local library.  If you have a library card, you might even have an online service if you don't want to actually physically go to the library to access a book selection; some have partnered with services like hoopla.
If your fandom is old or if you just want your own copy of something out of copyright, say, Pride and Prejudice or the Sherlock Holmes works (or, uh, if you want to do some research, say, into period-typical cookbooks or period-typical science), you should know about Project Gutenberg.  (Everyone should know about Project Gutenberg.)  The free downloads could even be put onto your e-reader! https://www.gutenberg.org/
You could try some of the wikis, like for SCP or the Backrooms, for collective storytelling pieces.
Lastly but not leastly: You can, in fact, read a bunch of books for free.  Stuff Your Kindle or Stuff Your E-Reader doesn't even need a Kindle; you could download a Kindle or Nook or maybe even Kobo app (or Apple Books?) or even just read online to collect free e-books during the various events that you then have.  The nice thing about the Nook app is that it won't even let you buy a book if it isn't free, since they refused to share their info with payment processors, but it also has a much smaller selection.  With the others you'll want to maybe triple check it's free before you click the purchase button, especially as Kindle's even been randomly kicking books off their free list even when the authors want to sell it for free as a promo (AI algorithms, I bet, rolls eyes).  It is possible to get good queer books this way (and Prism Reads is having another event November 19th, so you're not too late to snag some)!  You can even get great sapphic titles this way. https://prismreads.com/ or just search 'stuff your e-reader' and pick out genres that interest you.  The great thing is, if you don't end up liking the book, it was free, but you can also pick up some really good ones that way, too.  I personally have been looking at a list from Book Below but I know there are others, and if you searched, say, free sapphic books right now I'm sure you'd find at least one book.
I obviously haven't had time to get through everything I picked up, but so far a few gems have stood out this year that prove there's some good finds in these events:
Breeze Spells and Bridegrooms by Sarah Wallace and S.O Callahan: a Regency M/M story in a queernormative fantasy world with fae and humans; I love the world and characters
Lord of Whispered Shadows by Jordan Ko, a historical M/M with a demon and a human trying to find how they fit in the world and with each other, rated M or E
The Gilded Seam by Bryn Halloway, a cozy sapphic fantasy with a really unique magic system and I'd say a butch protag
Psycho Hose Beast from Outer Space by CD Gallant-King, which I think one reviewer described as a Canadian B-movie creature feature, mostly gen and funny with some genuine scares
Also, I'm generally enjoying ReadEra; you can put things into your own collections, so you can, for example, stuff all fandom fics into a labeled fandom folder, like BtVS, and also if you happen to have downloaded epubs you can click on the title and it'll list all fic tags as "genres", which you can then click into.  If you really want to make it easy you can also then select all and make a collection based off that.  (I'm making separate collections because I also have pdfs and text files from various sources.) 
If you can, think about donations to some of these smaller archives as well!  They don't pull in near the funding Ao3 does.

So, how's it going?  Well...I did upload a couple stories on SquidgeWorld.  Which doesn't help because SquidgeWorld also went down.  (Guessing they saw the huge influx, wanted to add capacity to help accommodate the new userbase, and adding that in had technical difficulties.)  I'll note if you end up using it and liking it maybe throw a donation their way too; they have a much smaller donation base, still a nonprofit, could definitely use even a little to help cover costs!
About the potential anti thing: that part of their TOS (about "snuff films" and encouraging underage sex) did give me pause, but there are a couple things that made me more confident.  The founder made a remark about "no, we're not going to censor stuff for you; people have to learn to curate what they see online better" in a tumblr thread, someone suggested that both those parts in their ToS, as vague and unhelpful as they are, were probably meant to cover Squidge Images, not SquidgeWorld, since that can host pictures and video that could actually legit be illegal in most jurisdictions rather than just the weirdo puritan ones, so it's not a morality "ew icky" thing, and most of all the Royalty of Doxxing themselves, the anti brigade, upon fleeing over there did not appear to enjoy the experience.  They're good at finding fault, but if SquidgeWorld failed their purity test that quickly, there probably were no secret anti sympathies to find.  So.  I'm still a little nervous, but not too nervous.  I am being more careful about locking some fics to users only as per their ToS and I'll feel a lot better about it after a while has gone by and nothing's happened.
I've also been informed about another resource, so here you go: There are a couple of my stories available on Fichub!  (...To Avert the Future, Initiate the Secret Histories, and Echoes from an Endless Night I get, but I am absolutely fascinated by the idea that someone put one of my goofy dream outline writeups in there.  Anyway, link! https://fichub.net/legacy/epub_export?q=arcanedreamer)
Edit: So, uh, I don't actually mind my stuff being in fichub.  Unfortunately, the site as a whole got blocked by fichub, I have no discord or reddit, am not sure I want to send a site I know very little about my email even if it's not a scam/phishing campaign like that other website, and have no clue what Libera.Chat is to reach them and give permission.  So that's down.  Fortunately, I do still crosspost and have gotten several stories (including To Avert the Future!) up on SquidgeWorld now.
I am busy enough that asynchronous stuff like writing tends to be a lot of my socializing for fun, so having that missing kind of sucks.  I'm also contemplating a tumblr but I'm not sure if they're requiring age verification for signup or will in the future and I barely have time to keep up with what I do on the average.  Maybe if it's something I check once a week or something?  Speaking of, I think that's probably about the timeframe I'll be checking Squidge comments once it's back up, so.  Just a quick fyi.
Oh, and don't worry about the Google Drive thing.  With the news about Proton this week, all I can really say is, fichub or Internet Archive while you can, but obvs atm that's not really possible, so.  Also obviously, check the ToS where you're uploading.  If it's against the ToS and you get banned, that's a bad idea, so don't upload stuff that isn't yours to SquidgeWorld for instance.  In my case I'll either get to it or politely ask me to crosspost your particular wanted fic and I'll get to it; I'm copy-pasting from every one of my stories downloaded to Calibre (mostly because I figure they'll have more typo and grammar checks than my local copy in LibreOffice; speaking of, my tenses were all over the place in Volume I of JJBA Shadowed Suspicion and.  I have no explanation, but I might crosspost that back once Ao3 is back because yikes, no wonder most people are stopping in Vol I).
I did realize what was rubbing me wrong about the Internet Archive owner's statement; he seems really personally aggrieved by people using the Wayback Machine to...archive the internet.  Because they're not archiving the things he thinks are worth preserving.  And, I dunno, while archivists do decide what to archive, personally passing judgment on "well, creativity isn't as important to archive as Serious Important Things" is kinda counter the ethos of an anti-censorship platform.  (Then again, maybe he's just exhausted by all the libraries and authors coming after him.  Which, also understandable, but still, you get screamed at a lot and you get tired of it.)
Finally, tomorrow, probably, I'll make a post about what I've been reading (and extol the wonders of Stuff Your E-Reader days, lol).