The catfolk deities; Junori, Iathis, and even Kosenta, though the latter may need more convincing to work alongside the other two. She absolutely hates Iathis. I'd like to see if we can try and convince Baba Yaga's three associates to join; especially Areshkagal and Dradjit. They seemed to be the most powerful of the three since we can't find much about Nomias. The witch Pondera from early game. She had ties to the divine and clearly knew a lot about magic. Last one I can think of currently is the Andrumar, who's also in the Lluvia Forest and has ties to powerful fey or factions (presumably?).