I was always wary of using a dating site because of pervs and people who were just looking for sex. But then again, I know a couple of people who met boyfriends on Match.
I think the sites that you have to pay for have higher quality people.
OK Cupid seems to have a lot of Juggalos if you're into that:
okcupid juggalos and
Juggalos of OK Cupid