There’s no sure things in this hobby. Take your best, educated guess based on the website and reviews. Do your homework and be prepared to have it not pan out. But if you’ve done your homework well you’ll find a girl you click with. See her a couple times, and if you’re respectful and honest the rewards you seek will open up. If you show up expecting the full meal deal your first time with one of these girls, you’re setting yourself up for disappointment. It’s possible, and everyone gets lucky from time to time, but the only sure fire method is through good old fashioned relationship building. Even if all you want to do is cum in her eye.
It’s expensive and it’s time consuming but it works.
There are shortcuts - but those shortcuts are outcall agencies to a hotel. And even then, as always, YMMV.