take a look at latin american typefaces, there are lots of round fun fonts in that category
Trio Grotesk from Bold Monday could be an option.
Museo Sans Rounded is the best in this moment
(museo family is used for EXPO)
Try Gotham rounded
another one, TT ROUNDS (typetype)
a complete family with ten weights and a condensed version.
Museo Rounded. Are you looking for something bolder though?
Oduda is nice and friendly…
I really like Omne (https://www.dardenstudio.com/typefaces/omnes_pro).
At the moment I would go with Houschka Rounded
Garage Gothic is a great rounded headline typeface
I like reef rounded font.
It is free. google it.
I'll second maax rounded. Also din rounded is solid.
Gotham rounded, Museo rounded, Din and Core Mellow. :)