Well, if Naruto had both halves of Kurama, he would be incredibly powerful. His chakra reserves would likely be off the charts. He could perform more powerful jutsus with ease and might even be able to take on stronger opponents single - handedly. For example, in battles against the Akatsuki, he could have ended the fights much quicker.
In terms of physical training, Naruto would need to train his body to withstand the greater power of both Kurama halves. He could do more strenuous exercises like lifting extremely heavy weights or running at high speeds for long distances while in a Kurama - enhanced state. Also, his mental training would be crucial. He would need to be mentally strong to handle the influence of both Kurama halves on his mind and to be able to access their power when needed without losing control.
He might gain the ability to teleport short distances. Since Kurama's chakra is so powerful, it could potentially warp space around Naruto for a quick teleport. Another new ability could be a more powerful chakra shield. With both halves of Kurama, he could create a shield that not only protects him from physical attacks but also nullifies ninjutsu to some extent.
Well, having both halves of Kurama would significantly boost Naruto's power level. Kurama is already an extremely powerful tailed beast, and with the complete form, Naruto would have access to even more chakra. His attacks would be more powerful, and he could probably use some new and enhanced forms of his existing jutsu. For example, his Rasengan might become much larger and more destructive.
I'm not sure specifically as there could be many different fanfics with that title. It might be about Naruto's relationship with both halves of Kurama, perhaps exploring how he interacts with the yin and yang parts of Kurama in new and unique ways, like in battles or in his personal growth journey.
You could start by looking on popular fanfic websites like FanFiction.net or Archive of Our Own. Just type in the title in their search bars and see if it pops up.
Well, it could be about a high - tech world where Naruto has a mecha version of Kurama. Maybe the plot involves fighting new and powerful enemies that can only be defeated with the combined strength of Naruto and his mecha Kurama. The fanfic could also explore how Naruto bonds with this mechanical version of Kurama, different from his connection with the original Kurama.
For Naruto, it would be a whole new experience. He'd be constantly trying to communicate with the mecha Kurama, learning its quirks. Shikamaru might be the one thinking about the strategic uses of mecha Kurama in battle. He'd be coming up with plans on how to best utilize it. As for Kurama, he could be in an internal struggle. Part of him would want to stay relevant in Naruto's battles, while another part would be curious about this new mechanical version of himself and how it could help Naruto in the long run.
Perhaps Kurama has some hidden ability that allows it to manipulate matter at a fundamental level. Using this ability, it could assemble atoms and molecules to construct a new body for Naruto. This process might be tied to the Kekkei Genkai in the fanfic, where the unique genetic trait plays a role in how the body is formed and stabilized.