Frieza is an obvious choice. He is the main villain associated with the destruction of Planet Vegeta. Having him in the fanfiction would create a lot of tension. Bardock and Gine could be on a mission to take revenge on Frieza, which would make for a very exciting and action - packed story.
The story of Bardock and Gine in the Dragon Ball manga involves their lives as Saiyans and their relationship before certain events unfold.
It could change it a great deal. Goku might learn more about his Saiyan roots earlier, which could potentially make him more in tune with his Saiyan side. This could lead to him training differently or having different goals. For example, he might be more interested in exploring his Saiyan heritage and what it means for his power - up potential.
One good storyline could be Bardock and Gine's early days together. Maybe how they first met and fell in love. It could show their adventures as young Saiyans before the destruction of Planet Vegeta.
One great Bardock in Dragon Ball Z fanfiction is often depicted as a fearless and noble Saiyan. He is shown as a warrior who, despite the cruel nature of the Saiyan race at that time, had a sense of honor. In some fanfictions, he manages to break free from the control of Frieza in more creative ways than in the original story, making his character even more complex and interesting.
Goku is often paired with Gine in fanfiction, as their mother - son relationship can be explored in different ways. Bardock is also a common pairing since he was her husband in the original lore.
Well, perhaps the fanfic could focus on Bardock and Gine's relationship in the context of Dragon Ball Super. They might be exploring different planets together in the Dragon Ball Super universe. Along the way, they encounter various characters and learn about new forms of energy or power - like Ultra Instinct. They could then decide to train themselves to reach new power levels so they can better protect their family, including Goku who is now a key figure in the universe.
One great 'Dragon Ball Z Gine and Goku Fanfiction' is 'Gine's Return'. It explores what would happen if Gine came back into Goku's life. It has some really interesting character interactions and a great plot that stays true to the spirit of Dragon Ball Z.
Goku is a great character to pair with Bardock. Since Goku is his son, it can create some really emotional and action - packed scenes. They can train together or fight side by side against common enemies. Another good option is Vegeta. Their different personalities as Saiyans can lead to interesting interactions. Bardock's old - school Saiyan ways compared to Vegeta's pride can make for some engaging storylines.
Their powers could be enhanced compared to what they had in the original Saiyan saga. Bardock might have some new techniques, like a more powerful version of his Final Spirit Cannon. Gine could have some unique healing abilities or perhaps the ability to sense danger from far away. They could also have a combined attack that is based on their strong bond as mates, something that draws on both their power levels and creates a blast that can even damage the toughest of enemies in the Dragon Ball Super universe.
Well, obviously Gine is one of the main characters. She's the focus of the fanfic after all. There might also be other Saiyans like Bardock, as he was related to Gine. And perhaps some of the Saiyan warriors that she interacted with on a regular basis.