Well, Vegeta would be a likely character. He might be initially suspicious of the female Goku. Maybe he thinks she's a threat or just can't believe there's another Goku - like being. He could be there to add some comical moments as he tries to understand the situation.
In general, it's a bit of a toss-up. The strength of Manga Goku and Anime Goku can vary depending on the specific arcs and battles. Sometimes, it might seem like one is stronger in a particular situation, but that could change in another.
Kamen Rider SIN and SHF were both characters in the Kamen Rider series. However, they had different backgrounds and storylines.
SIC was one of the characters in the Masked Rider series. It was a fictional creature created by Ishimori Shotaro who coexisted with humans and possessed superhuman strength and abilities. The main purpose of the SIC is to protect mankind from the threat of evil forces. It played an important role in the story and fought with other masked knights.
In contrast, SHF was another character in the Kamen Rider series. It was a fictional creature created by Shoutarou Ishimori that coexisted with humans but was more powerful than them. SHF's goal was to replace humans as the dominant existence of the world. It played an important role in the story and fought with other masked knights.
There are some key differences between the SICs and SHF in terms of storylines. The SICs 'story revolved around protecting humans while the SHF's story revolved around replacing humans. In addition, the battle between the SICs and the SHF was also an important difference between them. The SIN and the other Masked Riders fought together to protect humans while the SHF fought alone to replace humans as the dominant existence of the world.
Well, in fanfiction, if Goku Black fuses with Goku, it could result in a super powerful being. Their combined powers might create a new form with an extremely high power level. This new entity could have a mix of Goku Black's dark and devious nature with Goku's pure-hearted heroism, leading to an internal struggle within the fused form.
Erza would also be a good pairing. She is a very disciplined and strong - willed character. Goku could learn from her discipline, and she could learn from Goku's carefree yet determined attitude. They could fight side by side in battles and protect each other.
If Goku Black fuses with Goku in fanfiction, the story would progress in a complex way. The fused form might go on a journey to understand itself. Since it has two very different personalities combined, it would face a lot of internal conflict. This could be used to explore themes like identity and the struggle between good and evil. Externally, the fused Goku could attract new enemies who see it as a threat to their power or plans.
In the manga, Goku has experienced death multiple times. However, his death is often a part of the narrative and doesn't mean the end for him. Resurrection and comebacks are common in his storyline.
In a Gohan x Goku fanfic, their relationship can be delved into by creating scenarios where they have to rely on each other completely. For example, if they are in a situation where Goku's strength and Gohan's intelligence are both required to escape. Their different personalities can also be highlighted. Goku's carefree nature contrasted with Gohan's more studious and responsible side. And of course, flashbacks to Gohan's childhood and how Goku's presence or absence affected him can add depth to their relationship.