Here are some bedding annual plants for the shade:
Impatiens – Classic shade favorite with bright blooms
Begonia (Wax & Fibrous) – Glossy foliage + flowers; great in containers
Coleus – Foliage star with bold color combos (many say “grow for the leaves!”)
Caladium – Heart‑leaf foliage in pink/white/green (tubers)
Lobelia – Delicate blue or white flowers (good as edging)
Torenia (Wishbone Flower) – Colorful midsize blooms
New Guinea Impatiens – Larger leaves/flowers and more heat tolerant than regular impatiens
Angelonia (in light shade) – Tall spikes (best where light shade hits a few hours)