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.
We can find some information about the food on the drawing table. In the search results, there was an article that mentioned how to draw the food on the table. It provided some steps and techniques. The article suggested drawing a small semicircle first, then sealing it up, and then drawing the corners of the dumplings, paying attention to drawing them like wavy lines. This way, he could draw a cute dumpling. In addition, there was also an article that mentioned the theme of food on the dining table in life. Through painting and manual creation, the food on the dining table was presented on the drawing paper. The article provided some steps and materials needed for painting. Based on this information, we can try to draw the food on the table, such as dumplings or other delicacies. The specific drawing steps and techniques could be adjusted and developed according to one's personal creative style and preferences.
Another possible main character could be the villain that forces the two Gokus to meet. This villain could be a new, super - powerful threat that the two Gokus need to deal with. Their meeting becomes a crucial part of the story to defeat this powerful foe.
To draw in comic draw style, start with simple shapes and build up. Experiment with different pen strokes and pressures. Also, look at how light and shadow interact to give your drawings more pop. It takes practice, but you'll get there!
One of the characters who could betray Goku is Piccolo. Although they've been allies for a long time, in fanfiction, things can change. Perhaps an ancient evil force takes control of Piccolo's mind and makes him turn on Goku. Or it could be Krillin. He might be influenced by an outside force that convinces him Goku is becoming too dangerous. Also, don't forget about the Kais. If there's some sort of power imbalance or a threat they perceive from Goku, they might betray him to maintain the order of the universe in the fanfiction.
Well, it could be about Goku Jr learning some of Goku's most powerful moves. Maybe Goku teaches him the Kamehameha. They might also go on an adventure together, like fighting a new and powerful enemy that neither could face alone.