In my mind, I have a totally out-of-canon Ron. He is sarcastic, smart, snappy, flirts with Carl whenever he can, piercing ears, tongue and belly button, long hair, covered in scars, makes jokes of his traumas and absolutely superhero shirts.
Just imagine a rarl, where Ron was never in Alexandria and he's much tougher than he was in canon. Carl totally falls in love with this boy who not only isn't afraid of him, but also stands up to him.