Hopefully, I’m not breaking any rules by posting this here!
I thought that instead of every community being on the main lemmy.ml instance I’d host a different (dedicated) instance for refugee rustaceans to get a hang of the fediverse.
It’s listed on join-lemmy/instances and the link is lemmyrs.org, everyone is welcome!
I myself have been figuring things out, but ideally you should be able to just go to Communites -> Search and it should show all the relevant named communities from other instances (as long as the instances are listed in federation, which lemmyrs.org is fwiw).
Admittedly that functionality is a little flaky in my limited experience.