Don't forget Southern options: Tasso Shrimp, Shrimp Etouffee, Andouille Sausage, Country Ham and
Red Chile Honey, Smoked Greens with Hocks, Chicken Nuggets and Cream Gravy. All spooned atop or inside bits of cornbread. Maybe just served as optional toppings. Plate of cornbread bites, multiple bowls of topping.
One thing to keep in mind, cornbread is much more absorbent than crostini or other bruschetta bottoms so it'll go mushy on you fairly quickly. If you want to stay with the concept but pre-plate, consider cornmeal foccacia. I think I have a recipe somewhere if you're interested.