I figure some of yall *cough* Cram *cough* might interested because there are so far 3 entries for Dungeon World, which I believe is Cram's new love.
https://itch.io/jam/mini-monster-jam
those are clever! Will follow
There's also a sub-forum for announcing and discussing ttrpg jams. Like most of them aren't my thing, so I'm not following super closely. But I know some of yall pders enjoy weird rpgs.
https://itch.io/board/385433/game-jams