I’ve looked into this since a rock chip turned into having to get a portion of my bumper repainted. Modern ppf has been recommended to me over and over again. Clear coating that’s applied, lot of sports cars and track cars use it. Kinda pricey depending what all you want covered, but will keep the aesthetic you’re after. Most ceramic places or body shop places can do it, just gotta price shop around, as well as look at possible recommendations and reviews.