Pardon my paranoia, but the best I'm willing give you is that I'm in Georgia, east of Atlanta.
And trust me, those three MC groups around here are not like anything you've ever encountered.
The one I mentioned where I could get shot, is currently a target of the GBI and several other law enforcement agencies. They make Hell's Angels look like a bunch of toothless grandpas on tricycles. Drugs, gun-running, and not one but two prostitution rings. And a lot more that hasn't quite made it into the news. They are seriously dangerous folks.
The other one only accepts people of their same ethnicity, and my ancestors were Dutch-Prussian. Which is not what theirs were.
The third group, well, I just don't make enough money to fit in there. They all are the "I'm wealthy and that makes me better than you" type. The Country Club set, and a lot like the Judge in the Caddyshack movie. Not folks with whom I would willingly choose to associate.
If there are any other groups, I'm completely unaware of them.
I wish I could make it to the meet-up, but I have a hard travel radius of 50 miles.