I think you need to figure out what kind of humor you actually like before hunting for a funny deck.
Like, the Gummy Bear Tarot might crack you up with how ridiculous it is, but someone else might just think it’s childish. And the Tarot of the Absurd could be perfect if you’re into weird surreal stuff, but if you prefer more straightforward jokes it’ll probably just seem confusing.
I used to roll my eyes at novelty decks myself if I’m honest. Thought they were just cash grabs that diluted the practice. Then a friend did a reading for me with this ridiculous cat deck (might have been the Mystical Cats someone mentioned earlier?) and I had this moment where I realized I was actually listening to the interpretation instead of being in my head about whether the cards were ‘legit’ enough.
Is it actual novelty you’re looking for? There are mini Tarot decks and that kind of ranges from “just a little smaller for your pocket” all the way to “small enough to wear as ear rings”.