Perhaps the Saiyan girl has a different fighting style than Goku. When they meet, she could introduce Goku to this new style. They could then blend their styles together to create an even more powerful form of combat. Also, the girl might have a special ability, like being able to sense danger from far away. She could use this ability to protect Goku and they would form a deep friendship based on mutual protection and respect.
There could also be a moment of self - discovery for both of them. Goku might see his past self in Kid Goku and realize how far he has come, while Kid Goku could get a glimpse of his future potential through meeting his adult self. They could share stories about their friends and enemies, like how Goku could talk about Vegeta and Frieza to Kid Goku, and Kid Goku could tell Goku about his early battles with the Red Ribbon Army.
The female Saiyan might be stronger than Goku at first. This could lead to an interesting dynamic where Goku has to find new ways to train and improve. He could learn some new Saiyan techniques from her. For example, she might know a special form of ki - blasts that are unique to her family.
Well, one possibility is that Bardock could see the potential in Kid Goku. He might be amazed at Goku's innocent yet strong - willed nature. Maybe he'd start to train Goku in some special Saiyan techniques, which could set Goku on a different path in his power - up journey.
In this fanfiction, Kid Goku might be initially shocked to meet Raditz. He could try to fight him with his pure-hearted and fearless nature, not fully understanding the power difference. Maybe Raditz would underestimate Goku at first due to his small size and childlike appearance.
In a fanfiction where Kid Goku meets Future Goku, one possibility is that Future Goku would be amazed at seeing his younger self. He might share some of the dark experiences he has had in the future, like the battles against powerful enemies and the losses. Kid Goku, being young and full of energy, could be inspired by Future Goku's strength and determination. Maybe he would start training even harder, eager to reach the level of his future self.
In such a fanfiction, Kid Goku might experience a range of emotions. He could be overjoyed at finally meeting his parents. Maybe they would teach him some new techniques or share stories about his heritage that he never knew before.
In this fanfiction, they might have an epic sparring session. Goku could pass on some of his old fighting techniques to Goku Jr.
Perhaps they would team up against a common enemy. In fanfiction, new threats are often created. They could combine their strength and unique techniques to defeat the bad guy.
In this fanfiction, they might have an epic sparring session. Adult Goku could teach Kid Goku some new techniques, like the Instant Transmission. It would be amazing to see how Kid Goku reacts to Goku's Super Saiyan forms.
Well, in this fanfiction, Goku and Bulma might go on an adventure together. They could explore new planets or search for the Dragon Balls in a different way than in the original story.