To create the same flavor as smoked paprika using the suggestions above will be your best bet. But if you want to add some heat that can be found in hot smoked paprika, use any of the substitutes above paired with hot red pepper flakes.
In contrast, bell pepper is a vegetable that comes in a variety of colors such as green, red, yellow, and orange. It has a sweet and slightly tangy flavor, and a crunchy texture. Bell peppers are commonly used in salads, stir-fries, and as a stuffing for dishes such as peppers stuffed with rice or meat. While they may look similar to paprika, they are not interchangeable in recipes due to their different taste and texture.