Best cute frogs for beginners

I want to get a pet frog. I have a 10 gallon glass tank. Preferably a rainforest terrarium setup. I want the frog to remain very small, not above like 2 inches so the 10 gallon tank is enough for it, fully land, not very loud, and not poisonous or anything like that. Good for beginners, and as cute as possible! Thank you