One common theme is self - discovery. Just like in the original Naruto story, characters in fanfics often go through a journey of understanding themselves better. Another theme is redemption. For example, characters who made mistakes in the original story might seek to make up for it in the fanfic. And of course, the theme of friendship and loyalty still holds strong, as it was a big part of the Naruto series.
Another theme is alternate universes. Writers create different scenarios where things could have gone differently in the Naruto world. Maybe Naruto was raised by a different person, or the Akatsuki had different motives. This allows for a lot of creativity and new storylines.
One common theme is redemption. Naruto often goes back in time to right the wrongs he or others have committed in the original timeline. For example, he might try to save a fallen comrade or prevent a village - wide disaster.
One common theme is the exploration of a different kind of relationship dynamic. Since Sasuke is female, it can change the nature of their bond. Another theme is often the role reversal or different reactions to the events in the Naruto universe. For example, a female Sasuke might approach her revenge in a different way.
A frequent theme is 'Time - Travel'. In these fanfics, a character, often Naruto, travels back in time and tries to change the past. This allows for a whole new set of adventures and interactions. Another common theme is 'The Ninja World's Politics'. Fanfic writers explore how the different hidden villages interact, form alliances, and compete for power in more detail than in the original series.
The theme of legacy is quite common. Goku is a legendary figure, and in fanfiction, his legacy - what he leaves behind for future generations - is often explored. Also, the theme of redemption can be found. Maybe Goku made a mistake in the fanfiction's plot, and he has to redeem himself. And the concept of the hero's journey is also there. Goku's path as a hero, with its challenges, growth, and revelations, is a recurring theme in serious Goku fanfiction.
One major theme is the struggle for power. In 'hotaru naruto fanfic', Hotaru could be striving to become stronger, either to protect her loved ones or to prove herself. Also, the theme of loyalty is quite prevalent. She might have to choose between different groups or individuals and show her loyalty in various situations. For instance, she could be torn between her loyalty to her village and a new friend from another place. This creates interesting storylines.
One common theme is adventure. Since Naruto is always up for an adventure and Shion's powers can add an interesting element to their quests. For instance, they might go on a journey to stop a new evil force using Shion's prophetic abilities and Naruto's combat skills.
One common theme is the clash of different worlds. Since Naruto is from a ninja - based world and Kirito from a virtual - world - based story, the fanfics often explore how these two different settings interact.
One common theme is power acquisition. For example, a character getting the power of airbending and how they learn to control it. Another is the clash of cultures. Since Naruto has its own unique ninja culture and airbending comes from the Avatar world, there can be a lot of interesting interactions between the two. And sometimes, friendship is a big theme too, like how characters from both worlds form bonds while dealing with the new concept of airbending.
A third common theme is the chaos that Deadpool brings into Naruto's world. Deadpool is unpredictable and often causes mayhem in the usually orderly (in its own way) ninja world. This upheaval and how the Naruto characters deal with it is a major theme in many of these fanfics. Sometimes it's played for laughs, other times it's used to explore deeper concepts about order and chaos.