While not every community is on Lemmy yet that I visit on Reddit, by people migrating from Reddit to here, hopefully that issue will be solved soon. The community here seems way more welcoming than the Reddit community is too

Just created c/acnh , saw a general one on lemmy.ml, but not one specifically for Animal Crossing New Horizons. One for Animal Crossing New Leaf would be good too, but I’m not creating it as I don’t really play that one as often, but still putting that thought out there. Some version of the namenerds community on Lemmy, Data Hoarder (which might have an official one, so I’m waiting to see on that one), mental health communities, and specific ones for the different Pokemon games is what I use Reddit for already, so that’s all my suggestions.