Meh on the Jazz, no offense.
I've compiled a list of potential teams:
Milwaukee - My best friend's team. I'm saying no on principle.
Chicago - Don't like Noah, don't like Boozer, Rose is alright.
Miami - Hahahahaha no.
Cleveland - A good option. Always kind of followed them anyway.
Golden State - BIG fan of Curry, though becoming a fan now would feel like bandwagon jumping.
Houston Rockets - See: Golden State. Also a fan of Harden.
Lakers - Going from a Celtics fan to a Lakers fan? Heresy.
Indiana - A decent option.
Clippers - Also could be seen as bandwagon jumping. Also would have to go from rooting for Boston to a LA team.
76ers - I was once a Sixers fan, but that was due to Iverson being my favorite player alongside KG.
So we'll narrow it down to: Cleveland, Golden State, Houston, 76ers, Clippers.
I can also pick two teams to follow. Though I would prefer them to be in different conferences but that's not a requirement.