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.
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.
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.
The origin of Android 16 in Dragon Ball Super is quite fascinating. He was created by Dr. Gero, who was hell - bent on getting revenge on Goku. Android 16 was crafted with great power and unique abilities. However, his personality is different from what one might expect from an android created for combat. He has a love for nature, often seen observing birds and enjoying the outdoors. This is in contrast to his main purpose of being a combat android. His origin story also includes his relationship with other androids. While some were more aggressive, he had a more subdued and peaceful nature, which makes his story in the context of the Dragon Ball Super universe all the more interesting.
Well, it depends on how you define fanfiction. Technically, Dragon Ball Super is an official continuation of the Dragon Ball series. However, it does have elements that feel like fanfiction. For example, some of the power - levels and new forms introduced seem a bit outlandish and more like what a passionate fan might come up with rather than a strictly logical progression from the original story. But it's still an official part of the franchise so it's a bit of a gray area.