Adultfolio has by far been the greatest platform for me to meet people and gain work from, the site layout is intuitive and easy to understand as is the messaging and media manager side of things.
There are plenty of members and the forum is fun and helpful.

Adukt Folio is a good site to contact models-photographers. You can show your work and explain your details in your profile. All my paid works have been organised via Adult Folio and I am super happy for using this platform :)
I encourage everyone a lot to use it!!! :)