try the yellow pages...under escort services
but seriously, if all you want is tickling for the thrills that gives you, in every city there are professional women who will provide just about any sort of satisfaction. As the song goes, "if you got the money, honey, I got the time"
if you live in the or near the large urban areas where there are gatherings, whether tickling or, more likely, fetish or bdsm and the like, go to them and you might meet someone
but if I understand the OP question, you are in the mood for purely physical fun, only rather than straight sex you want tickle play (with or without more - can't tell from the OP) and in that case, go to some meat market singles bar, meet and greet and after some small talk and a drink or two, mention you'd love to see how ticklish she is and go from her reaction.
If you live in a small town in the middle of nowhere, go online, find your fave tickle vid and makes friends with five fingered rosy.
this ain't rocket science.