I believe they is still some Bare Knuckle unscantioned bar cage fighting in West Virginia (you know cousin kissing country). Next time I talk to my friend in W. V. I’ll ask him for a contact info.
I suggest starting by looking for any local tournament you can find, TKD, BJJ, anything. By starting off competing, you can build a ranking and gain points in some kind of sanctioned organization. Then, at some point, if you do good, you’ll start to get noticed, and the quality of your competition will get better over time, and the money will increase gradually. Have patience. They have competing categories in everything, every weight class. You can do sparring from tap-tap to knockout blows, or in between. Chances are if you just show up and pay for a tournament, or 2, you will have a shot at winning at least a few matches. Even if you lose, as long as you build a ranking and keep competing (the websites for these org. keep track of your points), you will start to get exposure. That is the best route if you want to make money fighting; instead of risking breaking every bone in your body by picking streetfights with people, just do tournaments, where they have doctors at ringside and can make sure that things are fair and you get paid a bit too. No use risking a streetfight where you think things are fair, and then a guy suddenly pulls out a knife when he’s losing and starts to stab you. The ring or the octagon is the place to hone skills from people who want to fight too. Toughman is also good. Just take a fight, any fight if they’re offered. You have to do this to get the fights you really want; build some reputation and let your competition go from cakewalk to more formidable opponents. Heck, I’ve judged a few local TKD tournaments this year and noticed that competition can be anywhere from really, really bad to extremely good, or even cage matches I’ve seen where good fighters fight really bad ones. You can get a terrible fighter that is easy to fight, and just because it’s full contact doesn’t mean that the other guy knows how to fight. Heck, I sometimes train with guys who have fought in the ring, and some are pretty good, but some are just guys you can beat if you have a bit of martial arts experience. You can probably start by finding the many opponents out there who have horrible losing records and fight them first to guarantee some easy victories, then start getting guys gradually who have winning records. There are plenty of guys who haven’t won anything, so that’s a good way to take an easy no-risk fight.