Eww Naruto
Well you can always reflavor Enlarge Person to be an aura such as that surrounding your body. Polymorph can do this as well if you want to push it.
Ive personally always liked flavoring heavy transformation effects like this. Growing dozens of feet tall has always felt a little, unheroic? At least for most characters, I prefer to keep their aesthetic and not have to have my hands tied for the sake of optimization.