Combine ingredients for the Pico de Gallo in a small bowl then refrigerate until ready to serve. Can be made a day ahead of time.
Stir together desired amounts of ranch dressing and salsa (I use ~50:50) in a small bowl to create the Salsa-Ranch Dressing then set aside.
Add romaine, sweet corn, black beans, and desired amount of pico de gallo to a large bowl then toss to combine. Add avocado, crushed tortilla chips, and Salsa-Ranch dressing then toss again to combine. Serve immediately.