He could start training with it immediately. Naruto is known for his eagerness to learn new techniques. With the zanbato, he might develop a new fighting style that combines his existing ninjutsu with the power of the large sword.
Another possibility is that Naruto uses the zanbato to unlock a new form of chakra. The unique energy of the zanbato could interact with his own chakra in unexpected ways, allowing him to access a more powerful state. He could then use this new power to face off against a long - awaited enemy, like Madara or Kaguya in a more epic battle.
One possible fanfiction could be 'Naruto's Zanbato Adventure'. In this story, Naruto might find the zanbato in an ancient ruins during one of his missions. The zanbato could have some special powers, like being able to cut through any chakra - based defenses. Naruto then has to learn how to use it properly while also facing off against enemies who want to steal this powerful weapon from him.
In a fanfiction scenario where Naruto finds a lightsaber, he could potentially incorporate it into his fighting style. He's always been creative in combat. He might use his ninja skills like speed and agility along with the lightsaber's unique capabilities. For example, he could use his shadow clone jutsu and have his clones all wield the lightsaber in different ways to confuse his enemies.
He might meet someone who is also after the scythe. This could lead to a conflict or an alliance. If it's an enemy, Naruto will surely fight to keep the scythe. But if it's someone who can help him understand the scythe better, they could team up and go on adventures together.
Another possibility is that the robot is from a future where ninjas no longer exist. It could be sent back in time for some reason, and Naruto is the key to its mission. The robot might need Naruto's help to change something in the past to ensure a better future. Naruto, being the hero he is, would likely take on this challenge without hesitation, leading to a whole series of exciting adventures.
Naruto could find a book that tells the story of a great hero who was just like him, full of energy and a desire to protect. This could inspire him to new heights. He might also accidentally trigger a trap or a hidden mechanism in the library while exploring, leading to an adventure filled with challenges and puzzles to solve.
Well, he might put on the suit and suddenly feel a new sense of confidence. Maybe he uses it to infiltrate an enemy hideout. He could pretend to be a rich merchant or something, and use his ninja skills along with this new disguise to gather intel.
The baby could turn out to have some sort of special chakra. Naruto, being curious and always wanting to help, tries to find out more about it. He might seek help from Kakashi or other experienced ninjas.
It's possible that the tomb contains the remains of a powerful shinobi from the past. Naruto could learn about their history and the secrets of their power. For example, if it was an Uzumaki ancestor, he might find out more about his own clan's abilities. This could lead to him unlocking new forms of his chakra or even new ways to use the Nine - Tails' power.
Well, he could use the armor to enhance his combat abilities. Maybe it has some special powers like increased speed or strength. He might also discover a connection between the armor and an ancient ninja clan, which could lead to new adventures and unlocking more of his potential.
In such a fanfiction, Naruto might take the child under his wing. He could start teaching the child some basic ninja skills, like how to throw a kunai properly. Maybe he'd also share his own experiences of growing up as an outcast in the village, inspiring the child to be strong.