Welcome!
Not sure about the first two, but the third link is for
External Link/Members Only She seems to be relatively new, so may be worth a shot.
As a general rule, VS has a lot of profiles with fake (bait and switch) pictures, meaning that the girl on the profile is not the girl you will be seeing. This isn't ALWAYS the case and you can find hidden gems, but in my experience, you'll often find the pics are lifted from other places. I would always recommend doing a Google image search if you're unsure.
Adultwork is probably one of the most reliable resources. Again, you may run into bullshit profiles, and some things to watch out for are hidden feedback, inconsistencies in what is written on the profile and the services outlined, and requests for a deposit before meeting (never EVER pay a deposit.) After a while, you will develop a "nose" for scam/B&S profiles, the old maxim of "if it seems TGTBT, it probably is" is very much true in this game. As a friendly suggestion, I would consider punting a well-reviewed English girl for your first time to get your eye in, so to speak, as a shit punt can be very off-putting. Overall, read the UKP rules, respect the mods and wider community here and have fun. (When it stops being fun, it's time it give it up.) Oh, and get a burner phone!