William says they can commiserate in their horrible skills with girls, lol. He's also a Ravenclaw, though a year under him. I think they could very well be friends.
Dominique would be friendly to him, though I'm not sure she would know him well.
Zoe is up for anything. She usually will talk to anyone, so perhaps they should be friends or something. :)
Tanner... same year, but doesn't really care, lol.