Reddit has subreddits. What does Lemmy go with?
My personal vote is for lemmings!
Edit: I am personally leaning towards Sublemmy now. It retains the context of being a forum under the general sphere of Lemmy and the connection to Reddit lets people know immediately what Lemmy is about. Thanks to @[email protected] for the comment!
I think lemmings have their homes under ground, so maybe “Burrows”
Burrows is a far better name for instances tho