Jazz band

I've been debating if I should join jazz band for my highschool. I currently playing Contrabass Clarinet, and have played bass clarinet. A, I don't really know if I should join. And B, I don't know if I should swap back to bass clarinet for jazz band or learn something like the Bari sax or tenor sax. Or just be a jazz clarinetist. What are your thoughts on this?