Prepare the Slow Cooker: Spray the slow cooker with non-stick cooking spray to make cleanup easier.
Layer the Ingredients: Place the chicken breasts at the bottom of the slow cooker. Add the chicken broth, diced tomatoes, black beans, and corn. Sprinkle the ranch seasoning mix, chili powder, garlic powder, cumin, and kosher salt over the top. Stir gently.
Add the Cream Cheese: Place the cream cheese cubes on top of the mixture. Do not stir.
Cook: Cover the slow cooker and cook on LOW for 7-8 hours, or on HIGH for 4-5 hours.
Shred the Chicken: Once the cooking time is complete, remove the chicken breasts from the slow cooker. Shred them using two forks and return the shredded chicken to the pot.
Combine: Stir the chili well until the cream cheese is fully melted and blended, creating a creamy consistency.
Serve: Ladle the chili into bowls and garnish with your favorite toppings, such as shredded cheese, diced avocado, sour cream, cilantro, or tortilla chips.