You could start by thinking about unique plotlines and character developments for Boruto. Maybe introduce new challenges or villains that haven't been seen before.
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.
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.
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.
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.
Mostly, yes. Fanfiction writers love to play with the idea of Naruto's Rasengan. They might give it new forms, like a lightning - infused Rasengan or a Rasengan that can split into multiple smaller ones. Since the Rasengan is so central to Naruto's character in the original story, it often makes an appearance in fanfiction, but of course, there are always exceptions depending on the unique ideas of each writer.
I really liked 'Naruto's Rasengan Adventure'. In this fanfiction, Naruto has a really hard time with the Rasengan at first. But his unwavering spirit keeps him going. It shows his training in a very detailed way, like how he messes up over and over but still doesn't give up. It's inspiring.