Another element is the battles. Since it's a powerful technique, it's often used in fights. So, the fanfic will describe in detail how Naruto uses the lightning rasengan against his enemies, like how it cuts through defenses or surprises opponents. It also might include how he combines it with other jutsus for maximum effect. For instance, using it with his flying raijin jutsu to quickly close the distance and then strike with the lightning rasengan.
A rogue ninja from a neighboring village who has also mastered a similar but dark - powered version of the Lightning Rasengan. He could be jealous of Naruto's fame and power and wants to prove that his version is superior.
One popular 'naruto lightning rasengan fanfic' could be 'Lightning Rasengan: The New Power'. It often features Naruto exploring the enhanced power of a lightning-infused rasengan. It might show him training intensively to master this new form and using it in battles against strong opponents.
One idea could be a story where Naruto discovers a new way to combine the Lightning Release with the Rasengan during a intense battle against a powerful enemy. This new technique could give him an edge and lead to a great victory.
Maybe Sasuke teaches him the Chidori in a moment of camaraderie. And for the Rasengan, it could be an older and wiser Naruto from the future who travels back in time to teach his younger self.
In many fanfictions, Naruto might master the Rasengan through intense and unique training methods. Maybe he gets some special guidance from an unexpected source, like a hidden shinobi in the village who has a different perspective on chakra control. This person could show Naruto some new ways to focus his chakra, which finally enables him to form the Rasengan successfully.
In some fanfictions, Kakashi could also play a role. He is very knowledgeable and has seen the Rasengan in action. He might offer some tips on chakra control, which is crucial for Naruto to master the Rasengan.
Well, Tsunade could be a great helper. She has extensive knowledge of chakra control and medical ninjutsu. She could teach Naruto how to use his chakra more precisely when creating the Rasengan, perhaps by showing him some medical - ninjutsu - based chakra control techniques that can be applied. Minato, Naruto's father, could also play a role. He was the one who originally created the Rasengan. He could appear in Naruto's dreams or in some sort of time - travel scenario and show Naruto some hidden aspects of the Rasengan creation that he didn't know before. And then there's Sakura. She's become very strong over time. She could use her strength and knowledge to assist Naruto, maybe by creating some sort of training regimen for him to improve his Rasengan creation skills.
Well, in some fanfics, Naruto might add elements to the Rasengan through intense training and experimentation. He could study different chakra natures and find ways to combine them with the Rasengan's basic form. For example, he might infuse lightning chakra into it to make it more piercing and fast - like a lightning - enhanced Rasengan.
Sakura. It would be really unexpected as she is mainly known for her medical ninjutsu and physical strength. But if she were to learn the Fire Rasengan, it could show a whole new side of her character. Maybe she'd incorporate her medical knowledge into the technique, like using it in a more precise and less destructive way.