New Super Mario Bros. U Deluxe has Toadette and Peachette.

Super Mario 3D World has Peach / Cat Peach.

My daughter beat them both at 5 years old. There’s also Mario Kart 8 which also has Peach. You may be noticing a theme here.

There’s also the Lego games where you get to choose your character and she always picks the girls.

Miitopia is great because you create your own characters. She makes the entire team girls.

My Friend Peppa is kinda entertaining, but she didn’t really care for it all that much.