You could probably pay someone in your area who caters to fetishes to engage in tickle play with you.
I used to hang out at a rather seedy bar, largely for laughs, and one of the waitresses told me that a lot of prostitutes will engage in fetish play in lieu of sex.
Prostitution of course is still illegal in most of the United States, but I don't believe that BDSM professionals like dommes are prohibited from engaging in commerce as long as there's no sex involved.