One interesting storyline could be Android 21's struggle to find her true identity. In fanfiction, she might discover that she has a hidden past or purpose that was not initially known in the original series.
One interesting storyline could be Goku and Android 18 teaming up to fight a new, powerful enemy that neither of them can defeat alone. They have to learn to combine their skills and powers in unique ways.
One interesting storyline could be a new character created by a gamer who has unique abilities that even the Saiyans are envious of. This character might enter the Dragon Ball Super universe and start competing in the tournaments, creating new rivalries and alliances.
One interesting storyline could be about a new and powerful character emerging in Universe 9. This character might have a unique ability that challenges the existing power hierarchy. For example, they could control a type of energy not seen before in the Dragon Ball universe.
In certain fanfics, Kale is sent on a mission to a different planet. On this planet, she has to adapt to new environments and fight against local threats. This not only tests her physical abilities but also her mental strength. She might meet new allies or face unexpected betrayals. Another interesting aspect in some fanfics is Kale's relationship with the Z - fighters. Some stories show how she trains with them, learns from their techniques, and in turn, teaches them something about the Saiyan way. These interactions can lead to some really cool and unique storylines.
Another possible storyline is that the balloons are actually a new threat to the Dragon Ball universe. They start multiplying uncontrollably and causing chaos. 18, with her strength and intelligence, teams up with the other Z - fighters to find a way to stop the balloon invasion. They might have to travel to different planets to find the source of the balloons and a way to destroy them.
Android 16 was created by Dr. Gero. His origin story involves being designed as a powerful android with a peaceful nature. He was made to be a part of Dr. Gero's plan against Goku and the Z - fighters. Android 16 has a unique appearance and is very strong, but he doesn't have the same malicious intent as some of the other androids.
Well, in some fanfictions, Android 21 might be depicted in new power - up scenarios. For example, she could form unexpected alliances with other Z - fighters. This would change the power dynamics in battles and lead to really cool fight sequences.
Goku is often paired with Android 21. Their relationship can be explored in different ways. Maybe Goku wants to test his strength against her, or they could end up training together to face a common enemy.
A more action - packed storyline could be Chichi getting kidnapped by an old enemy of Goku. Goku then has to race against time to save her. Along the way, he might face some new and powerful foes. Goku's determination to save his beloved Chichi would be the driving force of this exciting story.
One interesting storyline could be Trunks and Pan going on a time - traveling adventure together. They might visit different eras in the Dragon Ball universe and face various challenges that were not part of the original story. For example, they could end up in a time when the Saiyans were still on Planet Vegeta and have to figure out how to get back home without disrupting the timeline too much.