Make the ranch mix. Pour chicken broth into the slow cooker and stir in the ranch seasoning mix.
Combine and cook. Add the chicken breasts to the slow cooker and stir around to coat the chicken with the liquid. Cover with a lid and set the slow cooker on LOW for 5 hours, or on HIGH for 2 to 3 hours.
Shred the chicken. When done, remove the lid and shred the chicken inside the slow cooker using two forks or shredding claws.
Add the cheeses. Stir in the cut-up cream cheese and 1 1/2 cups of shredded cheddar cheese, stirring until completely melted and combined. Top with the remaining cheddar cheese; cover with the lid and let the cheese melt.
Finish and serve. Remove the lid and sprinkle chopped bacon on top. Garnish with green onions and parsley. Serve in sandwiches, wraps, burgers, and/or lettuce cups.