Season the chicken breasts lightly with salt and pepper, then place them in the bottom of the slow cooker in a single layer.
In a medium bowl, stir together the softened cream cheese, ranch seasoning mix, and cream of chicken soup until well combined. Spread the mixture evenly over the chicken.
Cover and cook on low for 4 to 5 hours or on high for 2 to 3 hours, until the chicken reaches an internal temperature of 165 degrees F.
Remove the chicken from the slow cooker and shred it using two forks.
Return the shredded chicken to the slow cooker and stir it into the creamy sauce until fully coated.
Top with crumbled bacon and shredded cheddar cheese. Cover and let sit for 5 minutes until the cheese is melted.
Garnish with chopped fresh chives and serve over rice, in lettuce wraps, or on toasted buns.