A lot of people just choose the closest team to where they live. But I consider that boring and unoriginal. This is different if it’s your actual city though. Then it’s just city pride. You have to go with it.

As a New Yorker I chose the Miami Dolphins because it’s my dad’s team and I grew up around aqua and orange. Also most Buffalo people come off as obnoxious dicks that like to break tables like frat boys and I don’t want to be around them.

Other options could be as simple as I like their jerseys. They look cool. Because you will most likely wear the jersey eventually.