Place the boneless, skinless chicken breasts at the bottom of the crockpot.
Add the diced tomatoes (with juices), black beans, corn, onion, red bell pepper, and garlic over the chicken.
Sprinkle the chili powder, cumin, paprika, salt, and pepper over the mixture.
Pour the chicken broth over all the ingredients.
Cover the crockpot and set it to low for 6 hours or high for 3 hours.
After the cooking time is complete, remove the chicken breasts and shred them using two forks.
Return the shredded chicken to the soup and stir in the juice of 1 lime.
Taste and adjust seasoning if necessary.
Serve hot with tortilla chips, garnished with fresh cilantro, avocado slices, and shredded cheese if desired.