I would love to find a girl who will kis and make out mostly
Kissing with providers range from those who will not kiss at all (Pretty Woman) to those that engage in deep French Kissing. Search the site to find those ladies willing to kiss according to your wishes, that you find attractive and reach out to them. Assuming a lady is will to engage in kissing, you'll not have any problem finding the services you seek.
Actually there are many. A couple great kissers are Kimberly Daniels and Lula Violet but Ive seen others that were totally awesome as well.
I would think most of them would be fine with a session that focuses on the foreplay.
... but are you planning to pay standard rate for an hour of mostly kissing and making out? If yes, then your options are many and the advice you've been given is good. But if you are hoping to negotiate a lower donation because "Hey, it's just kissing," then you are likely to have more difficulty. Maybe look at DIY massage girls who kiss, rather than full service providers?
A girl's prices are typically her prices whether you're kissing for an hour or fucking for an hour, at least in my experience. That being said, I always mix up my pleasures. No sense putting all my eggs in one basket.