Place chicken breasts in the bottom of the slow cooker.
Add black beans, kidney beans, corn, diced tomatoes, onion, and garlic.
Pour in chicken broth and sprinkle taco seasoning, chili powder, cumin, paprika, salt, and pepper.
Stir to combine, cover, and cook on low for 6-8 hours or high for 3-4 hours.
Remove chicken, shred it with two forks, and return it to the slow cooker.
Stir well and let it cook for another 15 minutes.
Serve hot with shredded cheddar cheese, sour cream, and tortilla chips.