A plot could involve Fasha somehow getting involved in Bardock's premonition of the destruction of Planet Vegeta. She could try to help him prevent it, leading to a series of adventures where they face off against the forces that are conspiring against the Saiyans. This would show their loyalty to each other and to their race.
One idea could be exploring their relationship before Bardock was sent on his final mission. Maybe a story about them training together and sharing their dreams for the future of the Saiyan race.
One way to develop their characters is to put them in situations that force them to grow. For example, if they were stranded on a hostile planet. Bardock would have to rely on his wits and not just his strength. Fasha could show her nurturing side, taking care of Bardock when he's injured. This would show different aspects of their personalities and help in their character development.
There might be a fanfiction that focuses on Fasha's relationships. For example, it could explore her friendship with Bardock in more depth, showing how they supported each other during their Saiyan days. This could include flashbacks of their training together and the challenges they faced as young Saiyans.
Some fanfictions explore Bardock's connection to the Super Saiyan legend in more depth. Maybe he had a premonition or some sort of hidden knowledge about it that he was trying to pass on. This can lead to really complex and engaging storylines that add new layers to the Dragon Ball lore.
One interesting 'Dragon Ball Z Bardock' fanfiction could be about Bardock surviving and coming back to change the course of Saiyan history. It might explore his relationships with other Saiyans in a new light, like how he'd interact with Goku differently.
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.
One possible plot for this fanfiction could be that Bardock's return is not a simple one. He might be brought back by some sort of time - travel or resurrection magic. His return could stir up old rivalries among the Saiyans. And as he tries to fit into the current Dragon Ball Z universe, he discovers a conspiracy that threatens not only the Saiyans but the entire universe. So, he has to fight against this conspiracy while also trying to reconnect with his son Goku in a more meaningful way.
A possible plot for a Bardock x Fasha fanfic is that they are both chosen for a special training program. During this training, they face various challenges that test not only their physical strength but also their relationship. They might start as rivals in the program but gradually realize their mutual attraction. Or perhaps they are sent on a rescue mission where they discover new things about each other and their Saiyan heritage.
A possible plotline could be that Bardock, in the afterlife, is able to communicate with Goku in his dreams. He warns Goku about an upcoming threat that is even more powerful than the villains he has faced so far. Goku then starts a new training regime in preparation for this threat, and along the way, he discovers more about his father's past and the true potential of the Saiyan race.
Well, it could vary a lot. In some fanfics, Bardock might be reborn with new powers or a different destiny. Maybe he gets to change the future of the Saiyan race. But it really depends on the author's creativity.
A popular version of Bardock in fanfiction is the one who has a premonition of the destruction of the Saiyans much earlier. This Bardock then tries to take actions to prevent it, like gathering other Saiyans who might be sympathetic to his cause. It makes him a hero figure right from the start, rather than just a victim of Frieza's wrath as in the original story.