Blackened Cod with Avocado Corn Salsa

Name: Blackened Cod with Avocado Corn Salsa
Ingredients: 1 teaspoon paprika; 1 teaspoon chili powder; 1 teaspoon garlic powder; 1/2 teapsoon kosher salt; 1/2 teaspoon ground black pepper; 1/2 teaspoon dried oregano; 1/2 teaspoon onion powder; 1/4 teaspoon ground cayenne pepper; 1 tablespoon avocado oil or olive oil; 4 (6 ounce) cod filets; 1 cup corn; 1 avocado (diced); 1 tomato (diced); 1/4 cup red onion (diced); 2 tablespoons cilantro (chopped); 1 tablespoon lime juice (from 1 lime); 1/4 teaspoon kosher salt