Well, it could be about a lot of things. Maybe it's a fan - created story where Chilled, Bardock, and Goku are all involved in some sort of adventure or conflict. It might explore their relationships, like perhaps a scenario where Goku has to face off against Chilled while Bardock's legacy or influence somehow plays a part.
A 'chilled bardock goku fanfic' could potentially be a story that delves into alternate universes. In this fanfic, Chilled could be a more prominent villain than in the original series. Bardock, being Goku's father, might have some hidden powers or knowledge that Goku discovers during the course of the story, which he then uses to combat Chilled. It could also be about how their different species characteristics interact and play out in the story's plot.
You could start by looking on fanfic websites like FanFiction.net or Archive of Our Own. These platforms have a large collection of fan - created stories, and there's a good chance you'll find a 'chilled bardock goku fanfic' there.
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.
One possible plot could be Bardock's adventures before Goku was born. Maybe it could show how he dealt with the Saiyan politics and his growing concerns about Frieza's rule. This could set the stage for Goku's future battles as his son.
It could be a story of redemption for Raditz. He starts off as a bit of a villain, but through interactions with Bardock (either as a memory or some kind of spirit guidance) and Goku's influence, he changes his ways. They could all be training together on Planet Vegeta before its destruction, with Bardock teaching them valuable Saiyan combat techniques and life lessons that shape them into the characters we know.
Another theme is power transfer or inheritance. Some fanfics might have Bardock passing on some hidden power or knowledge to Goku. This could be related to their Saiyan abilities or some special technique that only their family line can access. There is also the theme of redemption in some cases. If Bardock is brought back in a fanfic, he may seek to atone for his past actions through his relationship with Goku.
In a 'Bardock meets Goku' fanfic, the plot might involve Bardock being brought back to life by the Dragon Balls. He then sets out to find Goku. When they meet, Goku is initially confused but then realizes it's his father. They could then train together and Bardock could teach Goku some long - lost Saiyan techniques. It could also be a more emotional meeting where they talk about Goku's past and his mother.
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.
At first, it could be a bit rocky. Bardock is used to the harsh Saiyan ways, while Goku has been raised on Earth with different values. But as they spend time together, they start to understand and respect each other. Bardock could become a mentor to Goku, teaching him advanced Saiyan fighting techniques and Goku could teach Bardock about friendship and love.
One possible interaction is that Bardock could spar with Goku and Gohan. He'd test their limits and see how much they've learned about fighting. Another could be Bardock sharing stories of Planet Vegeta with them, which would be really interesting for Goku and Gohan to hear.
One idea could be to focus on Bardock's perspective before his fateful battle. Maybe explore his thoughts about his son Goku being sent to Earth and his own impending doom. He could have some premonitions about Goku's future role in saving the universe.