A great Twilight shapeshifter fanfiction could focus on the backstory of how the shapeshifting ability first came to be in the Quileute tribe. It could explore ancient legends and magic that were the origin of this unique power, and how it has evolved over time, and how the shapeshifters' connection to the land and their ancestors plays a crucial role in their identity.
There might be a fanfiction where a shapeshifter discovers a new form that is a combination of different animals. In this story, they struggle to control this new power and face challenges from both the vampire and werewolf communities in the Twilight world. They have to learn to master it while also dealing with the politics and relationships in that universe.
One interesting shapeshifter fiction story is 'An American Werewolf in London'. It tells the story of a man who is bitten by a werewolf and then starts to transform. Another is 'The Wolf Gift' by Anne Rice, which explores the life of a man who becomes a werewolf and his struggle with his new nature. Also, 'The Shape of Water' has elements of shapeshifting as the amphibious creature can change its form in a sense.
One great 'Twilight Bella Shapeshifter' fanfiction is 'Bella's New Form'. It explores Bella's transformation into a shapeshifter in a really interesting way. The author delves deep into how she copes with this new identity, her relationships with the other characters change, especially with Edward and the werewolf pack. It's a great read if you like stories that take the original Twilight concept and add a unique twist to it.
Leah Clearwater is also quite popular. As one of the few female shapeshifters, she has a lot of potential for character development in fanfiction. Writers might explore her feelings of being different among the mostly male shapeshifters and her own personal growth and relationships.
One interesting aspect could be the new abilities Naruto would have as a shapeshifter. He could use this power to deceive his enemies in ways he couldn't before. For example, he could transform into an enemy ninja to infiltrate their hideouts.
In 'twilight then twilight now fanfiction', there might be alternate timelines. Some stories could show what would have happened if certain events in the original 'Twilight' series had different outcomes. For instance, if Bella had chosen Jacob instead of Edward. This kind of plot twist can make the fanfiction really engaging and offer a fresh perspective on the familiar Twilight universe.
There are fanfictions that focus on the backstories of secondary characters. For example, a story about Rosalie's life before she was turned into a vampire. It might detail her human experiences, her dreams, and how those were shattered when she was changed. This kind of fanfiction can add a whole new dimension to the Twilight universe.
Maybe a fanfiction where the events of 9/11 cause the Twilight world to be more aware of human vulnerability. So, the vampires and werewolves come together to protect humans not just from their own kind but also from future disasters. This could lead to a whole new set of alliances and storylines within the Twilight universe.
One interesting concept could be a shapeshifter who uses their ability to infiltrate the Death Eaters. They could change their appearance to gather intelligence and help the Order of the Phoenix.
Well, in some Naruto shapeshifter bloodline fanfiction, the idea of a bloodline that enables the character to shapeshift into different elements is really cool. Imagine a character being able to transform into water to avoid attacks or into fire to launch surprise offensives. It gives a whole new dimension to combat and strategy in the Naruto world.
One idea could be a pokemon shapeshifter that is trying to hide its true form in a human - dominated city. It has to constantly adapt and learn human behaviors to avoid detection.