I don't recall any specific Exodite examples, but it's entirely possible. The only explicit positive relationship I can recall was between Craftworlders and the Interex.
Edit: Also the Ynnari allied with Rowboat before the writers remembered that people only care about space fascists and stopped giving them lore.
So long as they're not Imperials or on a Maiden World I don't see why not.
Weren't Exodite Eldar chill with living with humans until GW grimdarked them?
I don't recall any specific Exodite examples, but it's entirely possible. The only explicit positive relationship I can recall was between Craftworlders and the Interex.
Edit: Also the Ynnari allied with Rowboat before the writers remembered that people only care about space fascists and stopped giving them lore.