Excluding, say, here or the fediverse more broadly.
There have been some nice corners of the internet that have somehow kept going along their way that I’ve enjoyed lurking around like some alien observer. They are the few spaces I dare not pop in and ask, out of fear it would somehow break things.
midnight.pub - Chill place for people to write extremely niche and detailed blog posts.
IRC - Lots of technically competent people who are fun to talk to.
rawtext.club - I haven’t joined this because I don’t think I would really contribute much but it is a good idea.
Or just Gemini/gopher in general are cool places to be.