Chop the pulled chicken to bite sized pieces, then place in a bowl and mix with 1/2 cup of barbecue sauce and dry ranch mix.
Top the nachos with the barbecue ranch chicken, corn and black beans and then top with remaining cheese until covered to your preference.
Bake on the middle rack for 5-10 minutes or until the cheese is starting to bubble and brown and they are heated through. Then remove from the oven and drizzle remaining barbecue sauce and ranch dressing over the top evenly. Top with salsa, guacamole, sour cream and cilantro to taste.