Original clunky title: How do ActivityPub instances’ people initially find remote instances’ people/communities/channels/etc. to vary their feeds?
Given that an instance won’t see remote instance’s people and stuff to follow/subscribe to until someone there has found them and followed/subscribed…That’s generally how ActivityPub works, isn’t it?
!newcommunities@lemmy.world is a very common one. I’ll put a plug also for !communities@ponder.cat. I also tend to look at the lists of communities from “good” instances and subscribe en masse to a bunch of them all at once if I like the vibe of the instance overall.
You are right that there really isn’t as good a way as there “should” be, maybe, but that’s what people do and it seems to work okay.