Someone asked something similar a few weeks ago. Look at my post history for my reply to that one for more info.
I've always found adultwork to be almost completely useless as a male escort for getting clients. It's ok for selling video clips if you promote the clips elsewhere and just treat AW as a very expensive, very ugly, horrible to navigate, 1990s looking video hosting site run by people who will take every opportunity to be difficult.
Sleepyboy, hunqz and rentmen are the main directories for male escorts in UK but you'll be competing directly for a relatively small pool of clients with a lot of male escorts who do provide the services you said you won't provide. If you want to stand out in the crowd and appeal to new clients, you'll need to work a lot harder on self promotion than "I'm pretty open to anything (except for sex and kissing)."
The best way to make good money as any kind of in person sex worker, in my opinion, is to stay off directories. The directories will all want your ID and selfies for verification and I think they're too lazy and incompetent to be trusted with our real identities. Directories have been hacked and raided before. It will happen again.
Build your own website instead. Use social media. Be prepared to put a huge amount of time and effort into self promotion over many years and eventually if you find what you're great at and love doing and you're the first result people see when they search for a provider like you, in your location, then you can be successful.