New player - overwhelmed by the amount of content to go through. Is there a recipe to beat all adventure maps? What hero should I use?

Made the mistake of googling best TD game in Apple Arcade for my daughter last week and 6 days later and 13h of gameplay here I am.

I haven’t given enabled play social yet, afraid I won’t put the phone down. I’m just looking for some quick guides to beat all maps. I only have Quincy and Obyn, but have 5000 monkey dollars.

Many thanks.