Just a little round of wishful thinking (perhaps), but imagine John-era Raven getting stuck on Marvel's Earth around the time the New X-Men (2004) started up (Post M-Day). Who would she room with if enrolled? Who would she form friendships with? And who out of the older X-Men could teach her a thing or two?
Ok here's my suggestion;
X-23 and Dust will room with her, eventually becoming good friends.
Psylocke can compete with her weird story and might be able to teach her some new tricks.