I am on many sites that you can use as a photographer to contact models, adultfolio is most likely the one where models actually answer your questions.
Apart from direct model to model recommendations this is the best way to arrange photoshoots, all types of models are here, from art-nude to hardcore, so every photographer will find what he is looking for.

I have used Adultfolio for a few years now to arrange shoots ranging from boudoir to fetish to some more adult nudity level of shoots, both solo and duo, and have managed to meet some wonderful people along the way! It is nice having an open minded website to share my higher level modelling!