1. California : Dodgers, Angels, Giants, A's, Padres
2. Ohio: Indians, Reds
3. Illinois: Cubs, White Sox
4. New York: Yanks, Mets
5. Florida: Rays, Marlins
6. Texas: Rangers, Astros
I'd guess there are others but I give up.....
Missouri: royals and cardinals
Pennsylvania: pirates and phillies
Though I'm not sure if the royals play on the Kansas side or the Missouri side