I created this seasoning to use on salmon specifically, although you can use it on any sort of fish.
2 tablespoons ground paprika
1 tablespoon ground cayenne pepper
1 tablespoon onion powder
2 teaspoons salt
1/2 teaspoon ground white pepper
1 tsp lemon pepper
1/4 teaspoon dried thyme
1/4 teaspoon dried basil
1/4 teaspoon dried oregano