In a large pot, add avocado oil over medium high heat and sear your chicken breasts for a couple minutes on each side. Remove from pot and set aside. Next, add the chopped onion and cook until softened, about 5 minutes. Add the minced garlic and jalapeño, and cook for another 1-2 minutes until fragrant.
Stir in the ground cumin, chili powder, and paprika, and cook for 1 minute to toast the spices.
Pour in the chicken broth and diced tomatoes (with their juices) along with your chicken breasts and bring the mixture to a boil. Allow to cook until chicken is tender, about 25-35 minutes.
Once chicken is tender, remove from pot and shred. Add the black beans and corn. Reduce the heat and let it simmer for about 10 minutes.
Stir in the shredded chicken and let the soup cook for another 5-10 minutes until the chicken is heated through. Season with salt and pepper to taste.
Stir in the lime juice right before serving.
Ladle the soup into bowls and top with tortilla strips or chips. Add any additional toppings you like, such as avocado, shredded cheese, cilantro, sour cream, and lime wedges.