how to make friends in college?

i posted this a while ago but didnt get many comments and im still struggling. their aren't many clubs I want to join, and im not too keen about walking into something I dont know whp anyone is or too much about. my classes are both pretty small (i already know everyone in there) and I there are people I talk to, but ones in the year above me and the other is nice but she just tends to sit with her best friend. what should I do