Are there any non mafia, non biker, and non skinhead white gangs in the U.S.?

I want to know where they are located, their turf, and main activitiesand numbers plus strength.I have heard of the Chicago Gaylords before but they are basically extinct. I want information about active gangs Like the Simon city Royals. The reason I am interested is because I want to have a career in law enforcement. No i do not want to join any of them. Also i never hear about white gangs that is why i am asking.