Naruto needs to learn sum sort of fortification jutsu for the current rasengan. If he could apply the same amount of energy back at the attack, using his tremendous chakra reserves, then he should be able to reduce a gd portion of the dmg on his side or nullify it completely. Another gd option wud be having his clones do it, since they seem to be able to channel chakra into an object. He made them for the attack, he might as well let them carry out the technicalities. Because, as stated earlier, it wudn't make sense for a clone to hit sumone with Rasen-shurikun if a mere kunai can poof it.