Prep the slow cooker. Lightly grease the slow cooker insert or use a liner to make cleanup easier.
Season the chicken. Place chicken breasts (or thighs) in the slow cooker.
Sprinkle ranch seasoning, garlic powder, onion powder, smoked paprika, and a small pinch of salt and pepper over the top.
Add creaminess. Scatter the cream cheese chunks over the chicken. If you want a looser, saucier result, pour in the chicken broth.
Cook low and slow. Cover and cook on Low for 4–6 hours or High for 2.5–3.5 hours, until the chicken is cooked through and easily shreds with a fork.
Shred the chicken. Remove the chicken to a board and shred with two forks, or shred directly in the pot using tongs. Return the chicken to the slow cooker.
Stir in cheese and bacon. Add shredded cheddar and most of the crumbled bacon.
Stir until the cheese melts and the mixture is creamy. Taste and adjust seasoning with salt and pepper.
Finish and serve. Top with remaining bacon and sliced green onions. Serve hot.