Saucy, Bijoux, allure, blue Monday and Hamilton's are all good agencies.
The quality of girl has gone down a bit, 5yrs ago you could pick blind but the choice now is poor (imo). Lots of the girls have been in the game a while, different names, new pics. So 'new' is often not 'new'.
Isabella for example at Hamiltons, she been about years, never aged still a student - formerly Amelia at bijoux.