A fanfiction could involve Vados taking Goku on a journey through different timelines to show him the consequences of his actions. Goku would see alternate versions of himself and his friends. This experience could make him more cautious and strategic in his battles back in his own timeline. Vados would be like a guide, teaching Goku about the importance of balance and how his power affects the multiverse.
Perhaps a fanfiction where Vados senses a new threat approaching the universe. She enlists Goku to help her find a way to stop it. Along the way, they encounter strange new races and powers. Goku's simple but powerful approach to fighting combined with Vados' wisdom would make for an interesting dynamic as they search for a solution to this impending doom.
The plot could revolve around a new threat that only Bulma and Goku can stop. Maybe a new type of villain has emerged who is after the Dragon Balls for a very different and dangerous purpose. Goku's strength and Bulma's knowledge of the Dragon Balls and technology would be key in defeating this foe.
One idea could be that Kuriza, as Frieza's son, tries to redeem his father's name. He could start by training hard to become stronger than Frieza ever was. In the fanfiction, he might encounter the Z - fighters and instead of fighting them, he asks for their help in changing the ways of the Frieza race. He wants to break the cycle of tyranny his father started.
One possible scenario could be Goku and Bulma going on a quest together to find a new type of Dragon Ball that has unique powers. They might face various challenges along the way, like dealing with new villains who also want the Dragon Ball. Bulma could use her intelligence to outwit the enemies while Goku uses his strength to fight them off when necessary.
In this fanfiction, Goku could be weakened because of a broken promise to a powerful deity. As a result, his strength is taken away. He has to go on a journey to make amends. Along the way, he meets old and new characters who either help or hinder him. This journey not only restores his strength but also teaches him important lessons about responsibility and respect.
One of the interesting power - ups could be his Ultra Instinct form. In fanfiction, it might be further enhanced, like having different levels that are not shown in the original. For example, he could have an Ultra Instinct - Kaioken combination which would be extremely powerful.
One great fanfiction could be about Bulma and Goku going on an adventure to find a new Dragon Ball. In this story, Goku's strength and Bulma's intelligence combine to overcome various obstacles. They might face new enemies that are not in the original series and use their unique skills to outwit them.
One interesting storyline could be Goku and Android 18 teaming up to fight a new, powerful enemy that neither of them can defeat alone. They have to learn to combine their skills and powers in unique ways.
A more action - packed storyline could be Chichi getting kidnapped by an old enemy of Goku. Goku then has to race against time to save her. Along the way, he might face some new and powerful foes. Goku's determination to save his beloved Chichi would be the driving force of this exciting story.
One interesting fanfiction could be where Godlike Goku travels to different universes to teach other Saiyans how to achieve his level of power. He could encounter unique challenges and foes in each universe, making for an exciting adventure.