Another interesting Bardock fanfic idea could be that he gets sent to an alternate dimension during the explosion of Planet Vegeta. In this dimension, he trains with powerful beings and becomes even stronger than he was before. Then, he finds a way back to the main Dragon Ball Z universe and is now a force to be reckoned with. He could team up with Goku and Vegeta to take on threats that are far beyond what they could handle alone, like a new, more powerful version of Frieza or a completely unknown enemy.
There are some fanfics that focus on Bardock's pre - destruction memories and how they might influence his actions if he were to come back. For example, a story could explore how his love for his family and his hatred for Frieza's tyranny would drive him to train Goku in a different way. He might pass on some of the ancient Saiyan techniques that were lost over time. This could lead to Goku achieving new forms or powers much earlier in the story, which would have a huge impact on the battles against the likes of the Saiyans, Frieza, and the Androids.
A 'dragon ball z chilled bardock fanfic' might center around Bardock's relationships in a more chilled setting. For example, it could show his interactions with his comrades or family in a laid - back way. It could also be about Bardock's inner thoughts and feelings when he's not in the heat of combat. It might explore his hopes, dreams, or regrets in a peaceful context within the Dragon Ball Z world.
A fanfiction might explore the idea of Bardock seeing Goku's life through a time - space rift. He witnesses all of Goku's battles and the friends he makes. Bardock is filled with pride but also realizes that Goku has a different path than the traditional Saiyan way. This makes him question the Saiyan culture he once knew. Meanwhile, Goku starts to have strange dreams about his father, which leads him to search for more about his Saiyan heritage.
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.
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.
Another popular theme is Bardock's backstory. Exploring his life on Planet Vegeta before its destruction, his relationships with other Saiyans, and his rise through the Saiyan ranks. Some fanfics might focus on his relationship with his wife and how that affected his decisions. This can add a lot of depth to his character and make him more than just a tragic figure from Goku's past.
Obviously, Bardock is one of the main characters since it's about his rebirth. Goku might also be involved as Bardock is his father. Vegeta could potentially show up too, as he is an important Saiyan in the Dragon Ball Z universe.
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.
Some 'Dragon Ball Z Fanfic' worth checking out are 'The Lost Saiyan'. This fic tells the story of a Saiyan who was lost in space and finally makes his way to Earth. 'Piccolo's Secret Training' is another one. Here, Piccolo undertakes a training that could change the balance of power. And 'The Dragon Ball Hunt' is an exciting fanfic where characters are on a quest to find all the Dragon Balls for a very different reason than in the original.
Another option is to simply do a general search on your preferred search engine. Type in 'dragon ball z chilled bardock fanfic' and see what comes up. However, be careful of the sources and make sure they are reliable and not violating any copyrights.
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.