- Heat olive oil in a large pot over medium heat. Add diced onion and cook until softened, about 3–4 minutes. 
- Stir in garlic and jalapeño, cooking for another minute until fragrant. 
- Add cumin, chili powder, and smoked paprika. Stir to coat the onions and release the spices' aroma. 
- Pour in chicken broth and fire-roasted tomatoes (with juice). Stir well. 
- Add corn and shredded chicken. Season with salt and pepper to taste. 
- Bring the soup to a gentle boil, then reduce heat and simmer for 15–20 minutes. 
- Stir in lime juice. Taste and adjust seasoning if needed. 
- Ladle into bowls and top with tortilla strips, cilantro, avocado, cheese, or a dollop of sour cream. 
- Serve hot and enjoy!