Place the chicken breasts in the slow cooker.
Sprinkle the ranch seasoning, garlic powder, onion powder, and black pepper over the chicken.
Pour in the chicken broth.
Add the cubed cream cheese on top.
Cover and cook on LOW for 5–6 hours or HIGH for 2.5–3 hours, until the chicken is fully cooked and tender.
Shred the chicken directly in the slow cooker using two forks.
Stir well so the chicken mixes with the cream cheese and cooking juices into a creamy sauce.
Add the shredded cheddar cheese and most of the crumbled bacon. Stir until melted and combined.
Cover for 5–10 minutes if needed to melt the cheese fully.
Garnish with the remaining bacon, sliced green onions, and parsley before serving.