This is my advice for whatever it's worth.
While there are numerous exceptions, the TMF community is by and large M/F. I'm not saying that's the official gender orientation, as it's pretty clear that all gender orientations are welcome, and that's certainly a good thing. I'm saying that M/F is the reigning majority preference in the TMF, and the online tickling community. It's always been that way. Because of this, I would say that the TMF is a great place for guys to look for lee girls.
But guys looking for Ler girls? Some few wonderful examples can be found here at the TMF, but I'd say that the vanilla world is your best bet, and I'll tell you why. Getting a vanilla significant other to submit to being tickled is a massive challenge at best and a virtual impossibility in most cases. But most people, men and women alike would be happy to tickle their significant other if invited to do so. They don't have to endure the torture so it costs them little to participate, and unless they have some traumatic history with tickling (which many do, unfortunately), they'll likely find it a fun way to play.
If course, the more "fetishy" your interest, the greater the challenge. If your desire to be tickled is wrapped up in the whole S&M schtick with leather dominatrix attire, mummy wraps, and dungeon scenarios, then perhaps the TMF is your best option.