In a strange way I think Eos might be a little fond of Eris in that pretending to be mildly disapproving of her hijinks but actually finds them entertaining. If they get along her couch will be open to Eris too, as long as she doesn't mind the lack of curtains and the huge windows. Eos likes light, okay.
Persephone and Eos could be such fun! I mean, idk how much her secret-hate for Zeus is super secret but obviously she is not alone in that camp 8|. Zeus. I think she's be weirdly impressed by the fact that the marriage hasn't ended in some kin of horrifying and epic tragedy too, that kind of take talent.
Eos probably drops in on Orpheus' gigs from time to time -- she was on a big music kick a few decades ago and probably still has a bit of affection for it. She'll definitely be pleasant at least :D