Come one come all to the Lemmy-verse! It's nice and cozy here, we do have some "bad parts of town" but you can do an instance block and not deal with them lol
For your memes we have [email protected] if you like sciency posts mander.xyz has some excellent communities (communities=subreddits) like [email protected] and [email protected] and for a meme science combo theres always the fantastic [email protected]
You can also drop a shit(post) off at [email protected] or hang out at [email protected] (though you do have to post before you leave that one!)
There's much more around as well!
Obligatory, fuck Spez
Are there any real communism/anarchism communities?
slrpnk.net looks cool, haven't tried it yet
You want lemmy.ml. They are obviously quite annoying, so many instances have defederated with them.