In a large bowl, combine ranch dressing, minced garlic, paprika, black pepper, and salt. Mix well.
Add the cubed chicken breasts to the bowl, ensuring each piece is thoroughly coated in the marinade. Cover and refrigerate for at least 30 minutes, or up to 2 hours for maximum flavor.
Preheat your grill or grill pan over medium-high heat. If using wooden skewers, soak them in water for about 20 minutes to prevent burning.
Remove the marinated chicken from the refrigerator and thread the chicken cubes onto the skewers, leaving a little space between each piece for even cooking.
Sprinkle grated Parmesan cheese over the skewers, allowing it to adhere to the chicken.
Place the skewers on the preheated grill and cook for 10-12 minutes, turning occasionally, until the chicken is cooked through and reaches an internal temperature of 165°F (74°C).
Once cooked, remove the skewers from the grill and let them rest for a few minutes. Garnish with fresh parsley before serving.