The key element is Naruto's determination. In any 'naruto creates the rasengan fanfic', his unwavering will to master the Rasengan is central. It drives the plot forward.
One popular 'naruto creates the rasengan fanfic' is 'The Rasengan's Genesis' on FanFiction.net. It details Naruto's journey in creating the Rasengan in a really interesting way, with great character development and action scenes.
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.
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.
The Naruto learns Rasengan fanfic can take the story in various directions. One direction could be a more in - depth exploration of the Rasengan's origin within the context of the fanfic. Another could be a time - travel plot where Naruto goes back in time and teaches his younger self how to learn Rasengan faster. It might also focus on the emotional turmoil Naruto goes through when he struggles to learn the jutsu, especially if he feels like he's letting down his village or his teacher Jiraiya.
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.
One factor that makes a 'Naruto Learns Rasengan Fanfic' great is the ability to add new elements to the story. Instead of just repeating what happened in the anime or manga, it could introduce new challenges for Naruto. Maybe there's a new enemy who is also after the Rasengan's secrets, and Naruto has to learn it quickly to defend against them. Additionally, the fanfic should have a good pacing. It shouldn't rush through Naruto's learning process but also shouldn't drag it out too long.
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.
One possible new form could be an earth - enhanced Rasengan. It might be heavier and more solid, able to break through tough defenses like rock walls. Another could be a wind - enhanced Rasengan that has even more cutting power than the regular one. Maybe it can slice through thick metal with ease.
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.