In a large slow cooker, combine chicken, black beans, corn, Rotel tomatoes, garlic, Ranch seasoning, chili powder, chives, cumin, paprika, and onion powder. Cover and cook until the chicken reaches an internal temperature of 165°F, about 4-6 hours on LOW or about 2-3 hours on HIGH.
Shred the chicken with two forks.
Add the cream cheese to the slow cooker. Whisk gently for a few minutes, just until the cream cheese melts and smoothly incorporates into the sauce, about 3-5 minutes.
Serve over rice, in taco shells or tortillas, on salad, in baked potatoes, or on its own with tortilla chips for scooping. Garnish with optional toppings.
