be prepared to lose a lot of power if you want to go elemental + damage reduction route.

If I were you, focus on these 3 elements for now. FIRE, WIND, LIGHTNING. then make sure to add DAMAGE REDUCTION on all of your tools.

After that, it's up to you if you want to go full elemental resistance.

If you don't want to lose power, Use earth main with defense knowledge along with Minato Hokage.