Heat olive oil in a large pot over medium heat.
Add diced onion and sauté for 3–4 minutes until softened.
Add minced garlic, ground cumin, chili powder, and smoked paprika; cook for 1 more minute stirring frequently.
Stir in diced tomatoes with green chilies, fire-roasted diced tomatoes, black beans, corn, and chicken broth.
Bring mixture to a simmer.
Add shredded rotisserie chicken to the pot.
Let soup heat through for 5–10 minutes.
Squeeze in fresh lime juice and season with salt and pepper to taste.
Simmer for 2 more minutes to meld flavors.
Ladle soup into bowls and top with crispy tortilla strips, shredded cheese, sliced avocado, fresh cilantro, jalapeño slices, and sour cream as desired.