Yes, there are likely 'Bardock Kills Frieza' fanfics out there. The Dragon Ball universe has a huge fan base, and many fans like to create alternative storylines. You can try searching on fanfic websites like FanFiction.net or Archive of Our Own.
The plot could start with Bardock having a premonition of Frieza's future actions against the Saiyans even before the destruction of Planet Vegeta. He then secretly trains and discovers a new form or power that allows him to stand up to Frieza. When Frieza arrives to destroy the Saiyans, Bardock reveals his newfound strength and battles Frieza. After a long and intense fight, Bardock manages to defeat and kill Frieza, changing the course of the Dragon Ball universe. This could also lead to new alliances and power struggles among the remaining characters.
In a 'Bardock's group survive Frieza' fanfic, a major element is the alteration of the power balance. This can be achieved in multiple ways. For example, the fanfic might introduce a powerful artifact that boosts the Saiyans' power. The relationships within Bardock's group are also important. If they have strong bonds and are able to communicate effectively, they can better coordinate against Frieza. Moreover, the fanfic may explore different Saiyan cultural elements that give the group an edge. For instance, a long - forgotten Saiyan ritual or knowledge that helps them in their fight for survival.
Well, it could be that in the fanfic, Bardock's group forms an unexpected alliance. Perhaps they team up with another powerful race or a group that has some sort of technology or magic that can counter Frieza. This alliance provides them with the means to not only fend off Frieza but also to ensure their survival. Another possibility is that there is some sort of time - travel or dimension - hopping involved. They could escape to a different time or dimension where Frieza can't reach them.
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.
Frieza turning good in fanfiction would be a major game-changer. It might involve a character arc where he realizes the error of his ways and strives to make amends, adding depth and complexity to his persona.
Frieza might initially be shocked. He's used to being a feared and powerful being, and the idea of having a family is very foreign to him. So he could be in denial at first.
Well, 'bardock ssj4 fanfic' probably centers around Bardock as a Super Saiyan 4. Maybe it's about how he achieved that form in this fan - created story. It could be exploring his power levels, his role in a different version of the Dragon Ball story. For example, it might have him facing off against new villains or teaming up with unexpected allies. The possibilities are really endless in a fanfic as it depends on the creativity of the writer.
I'm not sure specifically as there could be many different 'bardock universe 13 fanfic' stories. It might be about Bardock in an alternate universe numbered 13. It could involve new adventures, different power levels, or unique relationships for Bardock that deviate from the original story.
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.