The way Lemmy works right now is you search a community in your instance for it to then get shown, so you need to first discover that community from elsewhere. With that in mind, what are some growing communities that you discovered that could get some more love?
To make a system agnostic link, you do it [like this](/c/thescarydoor@kbin.social) for Lemmy. Not sure if kbin has javascript URL rewriting, not tried it. Those URLs also don’t work in Jerboa atm. Gonna take a bit before all the papercuts get solved.