Fibrous (or wax) begonias are compact and don't mind a bit of shade. They come in the basic colours as well as different leaf colours, giving them added diversity and helping them look good in even more settings.
TIP: The brown leaf plants (Bada Boom) can handle more sun than the green, though both like part shade the best!
Part Sun- Part Shade
Photos and Data Courtesy of Ball Horticulture- https://www.ballseed.com