These are websites that I personally enjoy and would like for other people to enjoy as well. Most of them revolve around something fannish but there are some other things here too.

Squidgeworld - a fanfiction archive that uses OTW's code but hosts a smaller, more communal group of writers, many of whom have been writing fanfiction since the mid to late 1990s. Much of the fics there are for Western, live action scifi series', but there is an increasing number of fandoms being added pretty much every month.

FenRecs - Another site owned by the Squidge group, this is for recommending different fanworks for different fandoms. The site runs on Lemmy so it functions a bit like Reddit if you're used to that.

Squidge Images - Who would have guessed, another Squidge site! This is their place for hosting fandom-related images, such as fanart, icons, moodboards, etc. Just a warning, there is some uncensored NSFW on there (though that's a plus to me :3). I don't know who those two men are on the front page but I love them regardless.

Fandom Secrets - A Dreamwidth community where you can submit images containing "confessions", be they opinions or just random thoughts relating to fandom. You don't need a Dreamwidth account in order to comment or submit a secret, but I recommend doing so for the sake of subscribing to the community if you want regular updates.

FictionKin.Org - All about fictionkin and soulbonding terminology, writings, and other information. They also have a forum, but it's not very active.