the answer is easy....strip clubs....I go to the same one like once a week because a good friend is the bartender and I get really hooked up on the tab and also the scenery is not to bad lol. Over the years I have gotten to know several dancers really well I am into f/m and have paid a few to tickle me, some were really good, some not so good you never know. But I'm sure it would be just as easy to pay them to tickle them. The key is putting in the time (and money) to building that relationship so they trust you and like you. If you are just that creepy guy who tries to suck their toes the first chance you meet, well you can pretty much forget it, try a few girls out, try giving them some tickles to see who is really ticklish, get some dances buy a few drinks....DO NOT mention tickling the first time. then just like any other relationship when the comfort and trust is there mention a special "kink" you have and can she help you out, more then likely it is just a matter of price. It will cost you a bit, but to me this is more comfortable I usually know the girl pretty well by the time it happens it would be kinda awkward to me to ask a complete stranger (even a pro) to tickle me, I have had some great experiences with these girls and once you get over the stigma of the "stripper" its all good, some of the girls are really good girls of course most are trying to play you but that is their job lol. Good Luck!