Try
Wildcamcash 
See wildorchidz.com, but there are no niches.
Also
Camsense i think is what you need. They have all kind of niches (Teens, Non-Adult, Lesbian, Couples, Fetish: Stockings, Heels, Smoking, Uniforms and Role-play, Toys, Ejaculation, Face-sitting, BDSM).