One main theme is loyalty. Given their characters, the exploration of whether they are truly loyal to each other or have their own hidden agendas is often a key part. For example, in many fanfics, Kisaki's manipulative nature might put their loyalty to the test.
There's also 'The Unlikely Alliance'. In this fanfic, Kisaki and Hanma find themselves in a situation where they have to work together against a common enemy. It shows a different side of their relationship, with some interesting plot twists.
One common theme is friendship. Despite coming from different backgrounds, Naruto and Hanma often form a bond in these fanfictions. Another theme could be power - struggle, as they compare and combine their different powers.
One great story could be where the OC is a strong - willed martial artist who challenges Yujiro Hanma. Their interactions are filled with intense battles and mutual respect that gradually turns into a complex relationship.
Another theme is redemption. Itachi has a lot of actions in his past that need redemption, and in these fanfics, his relationship with Sasuke and Naruto can be a part of that journey. Like, his actions towards Sasuke are re - evaluated in the context of a new understanding among the three.
Growth and self - discovery are also main themes. Sarada is growing up and trying to find her place in the ninja world, and Sakura plays an important role in that journey. For example, in some fanfics, Sarada struggles with her identity and Sakura helps her come to terms with it. Also, the theme of family loyalty often pops up, as they are family and their bond is central to the stories.
One main theme is often friendship. Despite their differences, Snake and Meryl learn to trust and rely on each other. Another theme can be survival. In many of these fanfics, they are in difficult situations and have to work together to stay alive.
One common theme is acceptance. They come from different backgrounds and have different personalities, so accepting each other for who they are is important. Also, the theme of loyalty often shows up. They support each other through various situations in the fanfics.
One main theme is rivalry. Balto and Steele are often at odds in the original story, and this continues in many fanfics. Another theme is redemption, especially for Steele as he tries to prove himself in a different light. And friendship is also a theme, as they slowly move from enemies to something more.
A common theme is rivalry. Since they are both great basketball players, their on - court competition often forms a central part of the fanfic. Another theme is friendship. Many fanfics explore how they move from being rivals to friends. For example, they might start to understand and respect each other's skills more.
A third theme could be growth. They both start from certain points in their characters and develop over the course of the fanfic. Tobi might become more serious or Zetsu might open up more, depending on the plot and how the author wants to develop their relationship.