Some fanfics might depict the chakra rods as a means of communication. Since they are made of chakra, they could potentially be used to send messages or signals between ninjas over long distances. This would be like a chakra - based telegraph system.
One creative use is in espionage. In some fanfictions, Naruto can send out his chakra strings like invisible feelers. They can attach to objects or people from a distance and transmit back information, like a chakra - based surveillance system.
Well, there could be a fanfiction where the Nine - Tails Chakra has a mind of its own and starts to communicate with Naruto in a more complex way. It could show him visions of the future of the ninja world and guide him to make choices that are different from what he would have done otherwise. This could lead to new alliances and a completely different path for Naruto and his friends in the story.
You could create a character who is a descendant of an ancient clan that has a special connection to the Nine - Tails Chakra. This character could be a rival to Naruto at first, thinking that Naruto doesn't deserve the power of the Nine - Tails. Another option is a mysterious healer who can manipulate the Nine - Tails Chakra in a unique way to heal even the most severe wounds.
When Naruto uses chakra chains in fanfics, it has a significant impact on his combat style. Firstly, the chains can be infused with his chakra, making them extremely strong. This means he can use them to break through defenses more easily. Secondly, he can control the length and flexibility of the chains, which allows for creative combat maneuvers. For instance, he could coil the chains around an enemy's weapon and yank it away. Moreover, the chains can be used in combination with his shadow clones. The clones could hold the ends of the chains while Naruto attacks from a different angle, creating a complex and unpredictable attack pattern.
One consequence could be that he becomes extremely powerful. His physical abilities like strength, speed, and endurance are enhanced. He can also use more powerful jutsus with the extra chakra boost from the Kyuubi.
One interesting way is when Naruto absorbs chakra through his shadow clones. In some fanfictions, the clones can be used not just to gather information or attack, but also to absorb the chakra of the opponents they interact with. Then, they transfer this absorbed chakra back to Naruto, making him more powerful.
Perhaps there is an ancient artifact or a powerful curse that causes Naruto to absorb all chakra. In the fanfiction world, it's common to introduce such unique elements. For example, he might find a magical scroll that, when opened, starts sucking in all the chakra in the vicinity and then channels it into Naruto. Or it could be a curse placed on him by an enemy, but instead of harming him, it gives him this strange power to absorb all chakra.
The consequence might also be a shift in the balance of power in the Naruto universe. With all that chakra, Naruto could potentially change the political situation. He could end wars single - handedly or force the different ninja villages to re - evaluate their strategies. Moreover, his own physical and mental state might be affected. There could be a struggle within him to keep his identity intact while dealing with such an overwhelming power source.
He could share it with Hinata. Given their relationship, Naruto might transfer some of his chakra to Hinata to protect her during a dangerous situation. This would also strengthen their bond further in the fanfiction.