Devils_hand
I think he should really master Fujitsu if he is purifying his blood. Don’t forget the chakra chain’s also. That’s parts of there bloodline after all. Everyone always forgets those op chains. They are practically unbreakable. And they can suck the chakra out of who it seals. That’s why the biju fear them
a great start, suggestion to exploit the ability of the clones, elemental control, physical training, Fuinjutsu and most importantly seduction tactics or investigate how to treat women, "not the orange book or icha-icha", in four love interests , the most reasonable, hinata tough but tender with Naruto, Ino si sai doesn't deserve her, anko so she doesn't stay alone, Temari that lazy Shikamaru doesn't treat her well, shion the original Naruto didn't embrace her, she's also a blonde Hinata , maybe it was because of their bond or Sakura if he gets ready when he returns and changes her with lasting love, thanks and encouragement for everything.
For a person who reincarnated in Naruto's body, Sasuke is only useful for one thing and that is his Sharingan, just as Madara became stronger by mixing Hashirama's DNA with his, Naruto can do the same thing by taking Sasuke's original eyes. Sasuke or even taking Madara's rinnegan in Nagato and just as Madara did not suffer any restriction because he is a reincarnation of Indra's chakra and Naruto will also not suffer any restriction because he is a reincarnation of Ashura's chakra is the fastest way to get strong without repercussions negatives, technically it only needs to be the chakra to be mixed as they are reincarnations of their ancestors' chakra but it is likely that a part of the DNA has to be used in order to continuously produce chakra with that specific part