There aren't very hardly any companies in todays day and age that produce any content that is tailored towards the hardcore fetishists like this type of stuff. Back in the day, you had Tickle Central, Tickling-Post/Real Tickling, Tickling Paradise, Tickle Abuse, Stuck in the Stocks, etc..Most of todays content from 90% of the producers out there is very vanilla and boring.
I don't want to get into a long winded rant about piracy. But I think a big part of that has to do with piracy. Back in the day, it was a lot easier to find cute and very ticklish women to be in these videos. Now days, everything is all over pornhub for free, so it's hard to find girls that are willing to participate in these videos.
Keep in mind, most of those girls that you see in 99% of the great videos were literally just next door neighbor girls that were trying to make some extra cash, try something new and probably didn't even realize how ticklish they really were. But they still had a career, life, family and friends ..and the last thing they want is to end up on pornhub.