1. I’m not sure that the industry is big enough to support a commercial enterprise along these lines (non-commercial maybe). Most producers simply put a “Models Wanted” sign up and they seem to get the necessary talent through the door.

2. You would have to create a mechanism to vet (and periodically re-check) each producer associated with the site to make sure they were treating their models OK. I have heard some stories about one particular producer that make my hair stand on end, and I note with interest that many “famous” models work for this producer just the once – if at all. OTOH, I am 100% sure that many producers are perfectly sane and acceptable. But nonetheless, one can appreciate the ethical and indeed legal problems in having anything to do with placing a brand new first time model in an abusive situation.