Eros, tryst.link, Silxa, private delights
Eros it seems like half are fake or not legit, especially without reviews. Seems like most of the profiles that actually post the little videos are real for what its worth.
Tryst i've found is mostly legit unless the girl is super cheap and has an OF link, the other indicator they might be fake is if they have some kind of crazy travel schedule where they bounce all around the country out of order (ie LA to Chicago to Dallas to NYC to Seattle to Miami)
Slixa is basically non-existent in my area so not sure about how real it is.
Private delights I find kinda dumb because there's no way to filter by current ads, so what happens is girls that tour the area forget they made an ad then it just stays up for months after they've already left. I also dont trust the reviews on there, you're not gonna find any negative reviews so I dont believe that everyone that posts an ad on there is an angel.
Big one I use is P411 but they are starting to have fake profiles show up as well so you gotta be careful and do some research.