'lees are relatively few and far between but don't be disheartened because there are all sorts of folks out there. I guess it depends what you're looking for.
I've been seeking play partners on and off for ten years and only sessioned with two different girls who were specifically looking for tickling. But lots of people out there are into bondage and teasing and the like, so you might be better off seeking kinky dating / hookups and introducing the idea yourself (there's a nice and polite way to do this though - don't be a creep!)
I hear good things about munches and gatherings too, but that's not my thing so I can't comment.