Pour chicken broth and diced tomatoes into a slow cooker. Add onion, garlic, chili powder, cumin, paprika, coriander and season with salt and pepper to taste. Add chicken breasts then cover with lid and cook on LOW heat 6 hours, or until chicken is cooked through.
Remove chicken and shred, then return to slow cooker along with black beans, corn, cilantro and lime juice, stir. Allow to cook until heated through.
Serve warm with tortilla strips and cheese and other optional ingredients.