Well, it's hard to say who the 'best' is as it depends on personal taste. But some popular authors in the Naruto fanfic community often write great Kurama - Naruto related stories. One author to check out might be 'KitsuneWrites'. Their stories usually have really in - depth characterizations of both Kurama and Naruto.
The most obvious unique feature is the combination of Naruto's world with mecha elements. Instead of the normal Kurama, we have a mechanical version which brings a whole new set of powers and abilities.
One idea could be a fanfic where Kurama and Naruto have a telepathic adventure outside of the normal Naruto world. They explore different dimensions and encounter strange creatures together.
Well, Kurama might train Naruto by teaching him how to better control and access chakra. Since Kurama has a vast amount of chakra, it could show Naruto unique ways to harness and use it. For example, it could guide Naruto in creating more powerful and complex jutsu by using their combined chakra in a more efficient way.
It could develop as Naruto spends more time in the mental space where Kurama resides. They start to communicate better, understand each other's motives, and gradually form a deeper connection. This might involve Naruto learning about Kurama's pain and loneliness over the years, which makes Kurama more open to Naruto. As a result, their bond becomes stronger and more symbiotic, allowing them to share power more effectively and support each other in different situations.
To develop their relationship in the fanfiction, start with small acts of kindness. Naruto could bring Kurama some food from the human world that he thinks Kurama might like. Then, gradually build up to more significant events. Let them protect each other. For example, when Naruto is in danger, Kurama could use his own power in a new way to save him. And vice versa. Also, introduce some external factors that force them to rely more on each other, like a prophecy that says only their combined efforts can save the ninja world. This would make them realize the importance of their bond even more and deepen their relationship as brothers.
Naruto would gain better combat awareness. Kurama's experience in battles can be passed on to Naruto. He'll be able to read his opponents better, know when to attack and when to defend. This will make him a more formidable opponent in combat situations.
There are quite a few. For instance, when Naruto first realizes that Kurama actually cares about him. It's a moment of revelation for Naruto, and the way Kurama shows his concern, even if it's in his own brusque way, is really sweet. Also, during a particularly cold night, Kurama might use his chakra to keep Naruto warm. This simple act of kindness shows that Kurama is not just a powerful beast but also has a caring side. And when Naruto is doubting himself, Kurama tells him stories of his own experiences to inspire Naruto, which is a very heartwarming exchange between them.
If Naruto was raised by Kurama, his character would likely be more in tune with his fox - like instincts. He might be more solitary at first, as Kurama is a rather solitary being. But over time, he would learn the importance of bonds from Kurama's own experiences. His confidence would be sky - high, knowing he has the power of Kurama within him from the start. He'd also be more attuned to chakra control, as Kurama could teach him from a young age.
One great 'Naruto Mecha Kurama Fanfic' is 'The Mecha Kurama's Bond'. It focuses on Naruto and his unique connection with a mecha version of Kurama. The story has exciting battles where the mecha Kurama shows off amazing powers.