He could meet his descendants like Goku or Vegeta. It would be an interesting encounter as they have different upbringings and personalities compared to Bardock.
Often, Goku is paired with Bardock. Since they are father - son, it makes for an interesting dynamic in the fanfic. Bardock can see how his son has grown and influenced the universe, and Goku can learn about his Saiyan heritage directly from his father. Another character could be Vegeta. They can bond over their Saiyan pride and work together to protect the Saiyan race or take on common enemies.
A 'bardock xeno fanfic' has the potential to be a great piece of fan - created content. Since Bardock is such an iconic character, fans might be eager to read about his exploits in a Xenoverse - inspired world. The fanfic could show Bardock's growth as a character, how he adapts to new situations and challenges. It might also play with the idea of different versions of Bardock co - existing or interacting. This could open up a whole new narrative for fans to enjoy, with the added allure of the Xenoverse elements.
Bardock would probably be initially cautious around the Fairy Tail characters. Given his Saiyan nature, he is used to a more cut - throat and survival - based environment. But as he gets to know them, he would start to respect their loyalty and sense of family. For example, he might be impressed by how the guild members always have each other's backs, much like how Saiyans rely on their comrades in battle.
Bardock may start as a typical Saiyan, focused mainly on fighting and power. But as he faces the threat to Planet Vegeta, he could start to develop a sense of responsibility. He realizes that there's more at stake than just his own glory in battle.
At first, it might be tense. Bardock is a hardened Saiyan warrior from a different era, and Goku has grown up on Earth with a very different set of values. But as they start to communicate, they would find common ground in their Saiyan blood. Goku's pure - heartedness could gradually win over Bardock, and Bardock's strength and pride could earn Goku's respect.
In the fanfiction, their relationship could start with distrust. Bardock might not trust Gohan because he is part human. However, as they face challenges together, like fighting off some common enemy, they start to understand each other. Gohan could show Bardock his unique fighting style which combines both Saiyan and human techniques. Bardock, in turn, could pass on his knowledge of Saiyan heritage and the importance of Saiyan pride. This would gradually strengthen their bond.
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.
There are indeed some great Bardock and Gine fanfics out there. You can start by looking on fanfiction platforms like Archive of Our Own. Some fanfics might explore their relationship before Goku was born, perhaps creating unique backstories for their meeting and the early days of their family. Others could be more action - oriented, with Bardock and Gine facing off against various threats together.