One thing that you might need to pay attention to is how hot red pepper flakes are. Unlike paprika, you can't find mild, medium, and hot varieties of crushed red pepper flakes.
Consider combining tomato juice and hot sauce if you want a spicier and hotter blend. Simply follow the same ratios as above to make the blend and replace paprika in your recipes.
Never fear! As with most foods, there are things you can use in its place. However, you have to keep in mind that what we’re trying to do here is replicate either the taste or the colour. None of these substitutes are going to taste and look exactly like paprika, but we can get pretty close.
Moreover, we’d also suggest considering the type of dish you’re making which will help you choose the best paprika substitute.
Tomato sauce sports a nice bright red color and a sweet taste that mimics that of the sweet paprika. However, these qualities alone without the spice are not enough as a swap. Mixing it with chili powder will add the heat that tomato sauce lacks. There’s a catch, however. Since this backup is wet, it’s only good for recipes like stews and soups.
To use Aleppo chili powder in your recipe, add the same amount or half the amount of what's listed in your recipe for hot paprika.