If it's just a small amount, like half a teaspoon or less, you could conceivably get away with substituting chili powder, which is mainly paprika along with other seasonings such as garlic, salt, cumin, and a bit of cayenne. It's slightly hotter than plain paprika, but not overwhelmingly so. Some other ground red peppers like ancho chili powder, chipotle powder, or hot sauce would also work. Chili powder will also suffice if the paprika is just being used for a garnish. With these spices, you can go with a 1:1 ratio of the substitute spice to the paprika amount needed.
Paprika Powder
Chili peppers offer a range of potential health benefits due to their nutritional content and the presence of capsaicin, the compound responsible for their heat. Some of the potential benefits of chili peppers include:
Paprika is named differently from bell pepper because it is a different product with a different taste and use. The name “paprika” comes from the Hungarian word for pepper, which reflects the fact that Hungary is a major producer of the spice. Bell pepper, on the other hand, is named for its shape and color.
The degree of heat found within peppers, also called pungency or piquancy, is determined by how it measures on the Scoville scale, recorded in Scoville Heat Units (SHU).
Crushed Red Pepper: Crushed red pepper is synonymous with heat. Its fiery kick adds intense spiciness to dishes, making it a favorite among those who appreciate bold flavors. While its heat can vary, it is generally hotter than paprika.
Crushed red pepper is a staple in many kitchens, known for its fiery and bold flavor. This spice is made from dried and crushed red chili peppers, including the seeds and flakes. As a result, it packs a punch of heat along with a distinct pepperiness that can awaken your taste buds.

2. Time to choose your grinding style! You’ve got a few options to play with: