.... university clubs to join in Taipei

Hello everybody!

I wanted to ask if someone knows any university in Taipei that offers people, who are not students, to join their clubs (singing, dancing, …anything is okay!).
I’m a volunteer (21) working in Taipei Luzhou and I find it quite hard to meet people around my age. So if anyone knows anything please let me know.
Or any other activities to meet younger people, which are not too expensive (dancing classes, music schools,…), because as I said I’m a volunteer and I don’t really earn a lot of money.

Thanks in adance!!!