I don’t know where to start. The only English language forum I know of is international sex guide which helped me out immensely on my first foray. Online there are many options for outcall escorts, mileroticos.mx and craigslist(under tour guide lol) but watch out for bait and switch! Mileroticios.mx does have verified photos(enter fotos verificadas in the search bar) but you can still get switched of course. In addition to the countless MPs that come and go all over town, there are two well known massage parlours that offer full service in downtown Cancun. Mary Spa and Cancun Hands. Not sure if it’s your first time but I’d definitely be taking Uber when heading to Centro. Stay in the hotel zone and you’ve got the Pleasure Principle which is a fully legal and tourist-centric brothel with a shuttle service. Also in the hotel zone there are fly by night massage shops as well as legit ones. It’s generally not hard to decipher which is which. I’ve yet to partake in the freelancer scene there but I have elsewhere in Mexico and it’s huge. College students, hospitality staff, ladies making some extra cash can be found on SA, Tinder, Bumble whatever as well as in the nightclubs and bars. I’d steer clear of Centro(downtown)it’s a dangerous place. If you do hire a FL be prepared to shell out for an extra guest at the hotel or use a lower cost or love hotel. There are some good options on the strip. Don’t get too drunk while out and about, especially if you’re doing the lone wolf thing. And watch out for street walkers. Lots of shenanigans: pick pocketing, chain snatching, phone grabbing etc.
One more thing: I recommend sticking to the margaritas and mamacitas. Drugs, yes even weed, can get you in deep shit down there or at the very least ripped off. Best case scenario you’ll get overpriced garbage and you’re literally financing the violence.