With agencies you never know if the photos are real or fake
Are there any agencies that post real photos of their girls?
Also, Are there any clubs in LA that pros and semi-pros go to to meet clients? When I traveled to Ukraine there was a club I would go to and at this club nearly 85% of the girls were pros and semi-pros

You'll want to take advantage of those periodic Meet & Greets that we have.  That's likely the closest thing you're ever going to find to a place where straight providers gather.