In a fanfiction where Naruto becomes a cyborg, his appearance would likely change. He could have mechanical limbs that are sleek and powerful. His ninja way might also be affected. He might start to see himself as more of a weapon, but then realize that his humanity is still what makes him strong. He could use his new cyborg abilities to protect the village in ways he never could before.
In this fanfiction, Naruto might be recruited by a secret organization within Konoha to be a spy. He could use his unique ability to sense emotions to tell when people are lying. For example, when he's at a meeting of enemy shinobi, he can quickly pick out the liars and get closer to the truth. Also, his experience with befriending people could help him gain the trust of those he's spying on.
One idea could be that Naruto discovers a strange portal that transports him to the Pokemon world. Since he has his ninja skills, he quickly adapts. He might start by befriending Pikachu, as it's one of the most iconic Pokemon. His goal could be to become a Pokemon master, using his determination from being a ninja.
In this fanfiction, Naruto might gain some of Davy Jones' powers, like control over the sea creatures. He could use this new ability to protect his friends or fight against new enemies. For example, if his friends are on a ship being attacked by a sea monster, Naruto could use his Davy Jones - like powers to communicate with the monster and make it stop. However, he would also have to struggle with the dark side of these powers, as Davy Jones was often seen as a villain.
One idea could be that Naruto is cursed by an enemy ninjutsu which turns him into a clay face. This could lead to him having to adapt his fighting style as his facial expressions are now made of clay and might be less flexible. Also, his friends could initially be shocked and he would have to deal with their reactions.
Well, if Naruto becomes a Red Lantern, he would likely be filled with rage which is a core emotion for Red Lanterns. His journey as a ninja has already had many moments of anger, like when he couldn't protect Sasuke at first. As a Red Lantern, his powers might be enhanced by his existing chakra. He could use his newfound Red Lantern powers in a way that combines his ninja skills. For example, he could create constructs out of his red energy that mimic his shadow clones or rasengan.
One idea could be that Naruto discovers a hidden magical realm in the Naruto universe. In this realm, he meets a powerful wizard who sees Naruto's potential and decides to train him to become a Wizard Saint. Naruto's chakra could be related to his newfound magic, perhaps a unique form of it.
One idea could be that Naruto's greed is for power. He might see all the strong shinobi in the Hidden Leaf and start to envy their abilities, so he becomes greedy for more power. He could start seeking out forbidden jutsu or training methods that are considered dangerous.
Perhaps in this fanfiction, Draco's transformation into a female could be the result of a spell gone wrong. As a female, she then has to navigate her relationships differently. Her friendship with Blaise or enmity with Harry could take on new dimensions. She might find that she is treated differently by her Slytherin peers, and this could be a source of both frustration and self - discovery.
One idea could be that Link is cursed by an evil sorcerer to turn into a dragon. In the fanfiction, he might initially struggle with his new form, not understanding how to fly or use his dragon powers. As the story progresses, he could discover that his dragon form has unique abilities like breathing fire to defeat enemies he couldn't before. He might also have to find a way to break the curse while still in dragon form, perhaps by finding a magical artifact or by performing a heroic deed.
One idea could be that Sonic, through some magical or scientific accident, is transformed into a baby girl. In the fanfiction, his friends might initially be very confused. For example, Tails could be trying to figure out how to reverse the process while also taking care of Sonic in his new form. Sonic, as a baby girl, could have different abilities or limitations. Maybe she can't run as fast as before but discovers new powers related to cuteness or charm that help the gang in unexpected ways.