Place chicken breasts in the slow cooker in a single layer for optimal flavor absorption.
In a medium bowl, whisk together BBQ sauce, chicken broth, brown sugar, Worcestershire sauce, apple cider vinegar, garlic powder, onion powder, smoked paprika, salt, and pepper until smooth.
Pour the BBQ mixture over the chicken, ensuring all pieces are well-coated. Cover and cook on high for 4 hours or on low for 7-8 hours.
Once the chicken is cooked through and tender (internal temperature should reach 165°F), transfer to a cutting board and shred using two forks.
Return the shredded chicken to the slow cooker and stir well to combine with the sauce. Let it cook for an additional 15-20 minutes on low to allow the chicken to absorb more flavor.
Serve on buns for sandwiches, in sliders, over baked potatoes, in wraps, or however you prefer.