Does this not qualify?

Find an MMO that runs on whatever potato you have or can afford. Then join a guild. Then participate in raiding.

That can potentially kill a few birds with one stone.

You can take a look at Mero.chat. It’s a chat-with-strangers service. You earn more features the more you use it.

Emerald Chat is apparently the new Omegle alternative

NOIYS sorta counts ? Functions like text-only bulletin board type thing ?

Tends to have lotta kids on there tho if that's concern for you

Not a site, but if you download SoulSeek (peer to peer file transfer, great for finding music and other media) there are several chat rooms, although your IP is technically accessible so not fully anonymous.

It feels very early internet. Basically it's different chat rooms mostly for different types of music where you'll see a live chat feed. The biggest ones are LGBTQ and indie and a few others. People just kinda shoot the shit in there about anything, not necessarily music.

here? or irc?