finding the right friends to riff with

I figured out the source of one of my frustrations and how to correct it. I like riffing with people on nerdy subjects..or any subjects for that matter, but it sucks when you are with a business guy and you riff about 80's movies and he just loves Top Gun, in fact that is the only movie he saw in the 80's. Or I start talking football and riffing on that and a guy I am with loves music. The problem is I know endless amount of useless shit on 10 or so topics. Today I was making a fantasy football team with just Characters from movies and people kept on picking Kathy Ireland from Nessessary Roughness. She had zero touchbacks in that movie. I was pissed, but then I was glad, because that is such a horrible pick that my fantasy football movie team will kick that teams ass.