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.
A possible plot is that Goku Black, after losing his memory somehow, ends up training with Goku. Goku sees potential in him to change for the better and tries to guide him away from his evil ways. As they train together, they form an unexpected bond.
Maybe in a different timeline, Goku Black realizes the error of his ways much earlier. He approaches Goku for help to fix the damage he has done. Together, they embark on a journey to restore the different timelines that Goku Black had previously disrupted. This journey makes them learn a great deal about each other and themselves.
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.
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.
Perhaps a plot where Goku Black teams up with an unexpected ally. This could lead to some interesting character development as they learn from each other and face common enemies together. They could have different goals initially but find common ground.
One idea could be Goku Black getting caught in an alternate dimension where his powers are affected in strange ways, leading to unique interactions with other characters in a lemon - themed scenario. For example, he might have to rely on an unexpected ally to regain his strength while dealing with newfound feelings.
A possible plot is a time - travel scenario. Goku Black and Zamasu go back in time to try and change the course of history to make it easier for them to achieve their goals. They might target events like the Saiyan - Earthling alliance or try to prevent Goku from ever becoming a Super Saiyan. This would create a lot of chaos and interesting interactions with past versions of characters.
For Goku Black reincarnation fanfiction, a plot could involve him being reincarnated as a half - Saiyan, half - something else (like a Namekian). This would give him new powers and a different perspective. He might be hunted by an organization that fears his power, and he has to find a way to either hide or use his powers to fight back. Along the way, he could encounter other characters who help him understand his new existence.
One idea could be Black Goku, with his different personality, trying to understand Chichi's strong - willed nature. Maybe he initially clashes with her over protecting Gohan and Goten, but then gradually comes to respect her maternal instincts.
One idea could be Goku Black crossing over into a modern-day Earth where he has to deal with advanced technology that he doesn't understand at first. Another could be a crossover with a different anime universe, like Naruto, where Goku Black's power clashes with the ninja abilities. Maybe he teams up with Naruto against a common enemy.
One idea could be exploring their relationship in an alternate universe where they succeed in their plans. Another could be a story where Goku Black has a change of heart due to his connection with Zamasu and tries to stop their destructive ways. Maybe a plot where they face a new enemy that forces them to reevaluate their alliance.
One interesting plot idea could be exploring Goku Black's perspective on the multiverse. How does he view different versions of himself and the other characters? Another idea could be a story where Goku Black has to team up with his enemies, like Goku and Vegeta, to face a greater threat that endangers all of the universes. This would force him to put aside his differences and work with them, leading to some interesting character dynamics.