There might be a Turles fanfiction that focuses on an alternate universe where Turles teams up with the Z - fighters against a common enemy. This would change the whole dynamic of the story and lead to some interesting character interactions.
Well, in some fanfiction, Turles is given a redemption arc. He realizes the error of his ways after his defeat by Goku. He then tries to make amends by protecting planets instead of conquering them. Some stories might also involve Turles getting trained by the Kais or other powerful beings to become stronger and use his power for good. And there are fanfictions that put Turles in alternate universes, where he has different relationships with the Z - fighters and different goals.
One idea could be a story where Goku and Turles are forced to team up against a new, even greater threat to the universe. They start off distrusting each other due to their past but gradually learn to work together and respect one another's strength.
One possible plot could be Goku and Turles forced to team up against a new, powerful enemy. Maybe a villain from another dimension that threatens both their home planets. This would force them to put aside their differences and combine their unique fighting styles.
Perhaps in a different universe, Turles and Goku are brothers. They grow up together, training side by side, but then a prophecy divides them as they are told one must defeat the other for the greater good. This creates a complex relationship full of love, rivalry, and moral dilemmas.
One popular type of Dragon Ball Turles fanfiction might be adventure - based ones. For example, stories where Turles teams up with Goku against a new, powerful enemy from another dimension. These fanfictions often explore the dynamic between the two Saiyans who have different upbringings.
Maybe a fanfic where Goku discovers Turles has a different side to him. Turles could be in a situation where he has to protect something or someone innocent, which makes Goku see him in a new light. They then have to work together to keep this innocent thing safe from other villains in the Dragon Ball universe.
Well, obviously Turles and Goku are the main characters. Turles is often depicted as the villain in the original story, but in fanfiction, he can be portrayed in different lights. Goku, on the other hand, is the hero. Their interactions and the development of their relationship form the core of the fanfiction.
First, study the character of Turles. Know his motives, his powers, and his personality traits. Then, come up with a unique plot. It could be something that hasn't been explored much in the official story, like his relationship with other villains.
Their relationship could develop through mutual respect for each other's strength. Goku, being the pure - hearted Saiyan he is, might start to see that Turles has potential for good deep down. Turles, on the other hand, could be in awe of Goku's power and gradually change his view of Goku from an enemy to a rival and perhaps even a friend.
First, think about the basic plot. Decide if it's going to be an adventure, a character - study, or something else. For example, if it's an adventure, figure out what kind of adventure they'll go on.