Technically any pepper can be used to generate paprika powder. Hot peppers (such as chilis) make hot paprika, sweet peppers make sweet paprika, and when you smoke the peppers while they are drying you end up with smoked paprika. Some people want to blend pepper kinds for a novel taste. https://chanceeaecu.mdkblog.com/36712408/about-red-chili-pepper-crushed-mixed-with-seeds