[Goshin]

How do you think naruto will handle sasuke in the final battle, what kind of fighting style can naruto use against sasuke?

I think the kinds of jutsus that naruto should learn are jutsus that cannot be easily copied, jutsus like resengan, and FR are perfect because there are no handsigns involved so sasuke would have hard time using those against naruto

As for taijutsu, naruto bet learn yellow flash teleporting thingy because that he has to be so fast that even if sasuke eyes can predicts his moves his body won't be able to react

Naruto should also figure out how to make projectile ninjutsus, maybe make FR and actual shuriken which can be thrown. (i think that is what his next training session going to be about)

another way to beat sasuke is to just overpower with nine-tails chakra, not even kusanagi could pierce the chakra shell