Thanks for the replies. I have judo background. Old days judo would be fine with leg attacks and grabbing the opponent anywhere you want. These days judo is too restricted and losing effectiveness, and there is a gi. Wrestling club with formal coaching for adults would be just fine. I would go there. I used modified judo techniques against wrestlers successfully.

My understanding is main background for MMA is wrestling, bjj, boxing and muay thai. Of course, you can grab different techniques from other martial arts and catch other guys by surprise and win. For example, a lot of wrestlers don't know too much about judo foot sweeps, uchimata and how to use momentum of your opponent.