Perhaps they could start off not knowing they are brothers. Naruto is in his ninja world and Goku is in his. Then, a strange rift in the dimensions brings them together. They realize their connection when they notice similar powers or markings. After that, they train together and combine their unique skills, like Naruto's shadow clones with Goku's ki attacks, to face challenges in both worlds.
Another plot could be that they are raised separately, but there are always these strange similarities in their lives. When they finally meet, they are initially skeptical about being brothers. However, as they get to know each other better, they find out that they have the same father figure in some mysterious way. They then go on a journey to find out the truth about their family and end up saving their respective universes along the way.
In 'naruto black goku fanfiction', a plot could be that Black Goku is somehow connected to an ancient evil in the Naruto world. For example, there could be a long - forgotten scroll or prophecy that mentions a being like Black Goku. When he arrives, he starts to awaken dark forces that were once sealed away. Naruto and his friends then have to go on a journey to find out the origin of Black Goku and how to stop these newly awakened threats. Along the way, they might encounter new types of enemies and also gain new powers to face Black Goku and the emerging darkness.
One idea could be a tournament where Goku and Naruto are both invited. They start off as rivals but then realize they have more in common as they face powerful opponents together. Another could be a situation where an enemy from Goku's universe somehow ends up in Naruto's world and they have to team up to defeat it. A third idea is that a magic spell or some kind of power - related accident causes their powers to be swapped, leading to comical and also challenging situations as they try to adapt to each other's abilities.
One idea could be that the Kurama brothers have a secret mission to protect Naruto from an ancient evil that only they know about. They use their unique powers and knowledge to train Naruto in ways that no one else can.
A plot could involve a power - hungry villain who tricks Naruto into believing that Goku is a threat to his world. The villain gives Naruto a weapon that can disrupt Goku's energy. Naruto, believing the false information, attacks Goku. Goku, not wanting to harm Naruto at first, holds back. But as the fight progresses, Naruto manages to use the weapon and deal a fatal blow. Or perhaps there's a tournament across different universes where the rules are twisted, and Naruto, in order to protect his friends in the Naruto universe, has to eliminate Goku who is unbeatable in normal circumstances.
One idea could be that Goku and Goku Black are forced to team up against an even greater threat from another universe. They start to understand each other's fighting styles during the battle and gradually develop a grudging respect for one another.
In some versions, the female Goku could be part of a prophecy. The two Gokus meet, and at first, there is some confusion and misunderstanding. But as they get to know each other, they discover that they are key to fulfilling the prophecy. They combine their powers and defeat an ancient evil that was threatening both of their worlds.
A really interesting plot could be that Naruto and Sasuke, as brothers, are on a quest to find the origin of the Sharingan. Along the way, they meet different characters who have different views on the Sharingan. Some see it as a curse, while others see it as a gift. This journey makes them question their own beliefs about power and family. As they get closer to the truth, they also face challenges from those who want to keep the origin of the Sharingan a secret.
Perhaps in the fanfiction, as brothers, they have to face a common enemy that is specifically targeting their family line. This would make them rely on each other's unique abilities. Naruto's never - give - up attitude combined with Neji's precision could lead to some epic battles.
One idea could be that they discover they are blood brothers during a dangerous mission. This revelation then changes their entire dynamic and they start to fight side - by - side with a new level of unity. Another could be that there is a hidden prophecy about the two of them as blood brothers saving the ninja world in a unique way that no one else could.
One idea could be that Naruto and Gaara discover they have a shared connection to an ancient demon power. They have to team up to control it and prevent it from being misused by evil forces.