i remember seeing some good videos where one or multiple people get hypnotized (the real kind) for fun on pornhub, but since these vids are all gone, i wonder where i can find ssuch videos now

There's tons of videos still all over Xvideos, Spankbang, and various other sites like them. Quality varies wildly, content varies just as much (maybe a little less), and of course much of it is fake or so poorly done it seems fake.
You'll find lots of just porn, sure, but there may be some of what you're specifically asking for in there if you look hard enough. It's not common to find NSFW hypnosis SHOWS, per se, but single or double subject content certainly exists in large amounts.

If you're talking about a SHOW show, as in live, I think I remember seeing an add for a naughty hypno show in Las Vegas once. I considered going to it, but I was on a tight budget.

There's a bunch in Vegas, but they're overhyped and expensive AF. I considered going each time I was in Vegas, but I did not want to blow 1/5 of my entire fun budget on a ticket for 45 mins of relatively vanilla sexual hypnosis entertainment. (People humping chairs, orgasming when an audience member shouts a random word, or being in a strip-dancing contest, etc...)
Seeing recordings online is way more reasonable, and you get to keep your hearing! Seriously, we could hear the speakers from a block over.