Define growing. Are you in need of a 3rd row seat or just additional covered space?
Used to have a Suburban but we never used the 3rd seat.
Crew cab with a full topper has the same look and more function. Bed is clean and dry but if I have dirty or smelly cargo, passengers dont have to deal with it and cleanup is easy.
Plus even the short bed has more cargo space than a burb'. I wanted the long bed and have never regreted it!