Well, it depends on how you define fanfiction. Technically, Dragon Ball Super is an official continuation of the Dragon Ball series. However, it does have elements that feel like fanfiction. For example, some of the power - levels and new forms introduced seem a bit outlandish and more like what a passionate fan might come up with rather than a strictly logical progression from the original story. But it's still an official part of the franchise so it's a bit of a gray area.
Well, one aspect of Dragon Ball Super Bardock fanfiction could be exploring his backstory further. Maybe delving into his early days on Planet Vegeta and his relationships with other Saiyans. It could also show his potential power growth that we didn't see in the original series.
Goku is, without a doubt, one of the most popular. His constant pursuit of strength and his ability to overcome seemingly impossible odds make him a favorite for fanfiction writers. They can create all kinds of new adventures for him, like facing off against cosmic threats even greater than what he's encountered in the shows.
Goku's understanding of different universes and races could be deepened in fanfiction. Since Dragon Ball Super introduced the multiverse concept, fanfiction could explore how Goku interacts with and learns from beings from other universes, making him more worldly and less naive in some ways.
One great Dragon Ball GT Super fanfiction is 'The Forgotten Saiyan'. It has an interesting plot where a Saiyan from a long - lost lineage emerges during the GT era. The story has well - written action scenes and character development.
In this fanfiction scenario, it could be an extremely emotional encounter. Goku, who has grown so much in Dragon Ball Super, finally meeting his father Bardock. Maybe Bardock gets to see how his son has not only become a powerful Saiyan but also a protector of Earth. It could lead to some interesting exchanges about Saiyan heritage and the future of the Saiyan race.
One possible fanfiction could be about Vegeta's attempts to balance his training with family life. He might struggle to find time for Bulma and their family while also trying to keep up with the threats in the Dragon Ball Super universe. For example, he could be training for a new powerful enemy, but Bulma wants him to be more present at home. So he has to find a way to make both work.