Will - He likes to be noticed. Eh. He's a normal fifteen year boy.
Brooke - Right now she needs a push to do something wild and crazy, but she's up for random run ins.
Lala - She hangs about the common room among other places. They can maybe butt heads a few times? IDK.
Viola - She has several friends in Slytherin, so there's a chance that he's noticed her with them. I'd love more plot with her and now I'm half surprised he didn't make her mother's list.
Aidan - Aidan will give him some. And talk about where he's from because really that's just an invitation to never shut him up.