FB collecting can sometimes be cheaper than Baseball, depending on the era and team you like.
If you have a favorite team and a favorite few players, list them out and I'm sure the collecting community here can help you identify and maybe even acquire them.
If you like baseball, the choices are tremendous. Maybe your favorite FB team's home city influenced your new favorite baseball team.
Almost every city in America has a home team, even if some are kinda far away
Those are the easiest to follow, or maybe go to a game. Most ballparks have a nice historical section highlighting their past if you prefer collecting older cards (not active players...I don't collect modern cards, my motto is "deader the better"
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Give us a clue about your interests and you'll get some suggestions here. Don't be "forced" into collecting for someone else, or even worse, for investment. Just have fun and learn about this great hobby!