Pokemon would be the obvious one here, because it's a colorful and interesting world, and just having one Pokemon live alongside you would be fascinating. It's also a world that encourages exploration as opposed to settling into a structured life style. The kind of world you'd want to be in for a great sense of freedom, y'know?
Personally, I think Yu-Gi-Oh would be a fun world to live in. I mean, it's a world where a card game enhanced by advanced technology can be used to solve practically every problem, and said card game seems to be the equivalent of a world renown sport (to the point where you can play it on freaking motorcycles!). That'd likely be the one I'd choose if I had to pick just one, simply because I think I'd manage just fine in that particular setting.
Honestly, there aren't many others that I can think of off the top of my head. Maybe the world of Boku no Hero Academia or One Punch Man if I wanted to see and experience some really bizarre stuff (although with just how often things blow up in those anime, I don't think my life expectancy would be very high in either of them, although more so with OPM).