@Avel1896 For that many full grown Angelfish I think a 55 gallon would be best. That's a 48 inch tank. I've kept them in smaller tanks but they really do benefit from a larger aquarium.
Compatible fish species that can live peacefully with angelfish include tetras, gouramis, corydoras, plecos, and discus. It's important to research the specific needs and behaviors of each species and ensure proper tank size and maintenance for a healthy environment.