Well, a common trope is the 'Power - Up' one. In many Naruto fanfictions, the characters get new and unexpected powers. Then there's the 'Redemption' trope, like when a villain from the original series has a change of heart. Also, 'Pairing' tropes are popular, where fans write about different character relationships that might not be explored in the original Naruto.
One popular trope is 'Hidden Heritage'. This is when a character discovers they have a special, hidden lineage. For instance, Naruto finding out he has some other powerful bloodline aside from being a Jinchuriki. Another is the 'Mentor - Student' trope that gets expanded upon in fanfiction. And 'Alternate Universe' is also quite common, where the whole Naruto world is re - imagined in a different setting or with different rules.
FanFiction.net is a great one. It has a huge collection of Naruto fanfictions with different genres and styles. Archive of Our Own (AO3) is also very good. It has a well - organized tagging system which makes it easy to find specific types of Naruto fanfictions.
Well, a common trope is the 'Self - Insert'. Fans write themselves into the Naruto universe, interacting with the characters. Then there's the 'Crossover' trope, where Naruto characters meet characters from other universes, like from Bleach or One Piece. The 'Redemption' trope is also popular, where a villain in the Naruto world gets a chance to redeem themselves through some extraordinary circumstances.
Some of the popular Naruto fanfiction tropes include the 'Power - Up' trope. In this, a character gains new and often overpowered abilities, which changes the course of the story. 'Redemption' arcs for characters like Sasuke are also quite common. There are also 'Crossover' fanfics, where Naruto characters interact with characters from other series. For example, Naruto meeting characters from the Dragon Ball series. These tropes add new and exciting elements to the original Naruto universe and are loved by many fans.
Another popular trope is the 'romance - centric' ones. There are a lot of fanfictions that focus on the romantic relationships between the characters, like Naruto and Hinata, or Sasuke and Sakura. They develop the relationships in ways that might not have been fully explored in the original series, adding more depth and emotion to the characters' interactions.
One popular trope is the 'fish - out - of - water' story. Naruto, coming from a world of ninjas, finds himself in the high - tech, futuristic world of Overwatch. His reactions to things like flying cars or advanced medical technology can be really fun to write. Another trope is the 'power - transfer'. Maybe Naruto's chakra can be used to power up an Overwatch hero's weapon or ability. It's a simple but effective way to combine the two universes.
A common trope is the idea of the Pokemon having chakra. This allows for some interesting interactions between the Naruto and Pokemon universes. Also, there's the trope of Pokemon trainers from the Pokemon world ending up in the Naruto world and having to adapt to its ways. They might end up in a ninja village and have to learn about ninjas and their skills. Sometimes, there are crossovers where legendary Pokemon play a big role in Naruto - related events, like helping to defeat a powerful enemy in the Naruto world.
One popular trope is the 'powerful Naruto' where he is even more powerful than in the original series. This attracts multiple female characters to him. Another is the 'outsider acceptance' trope, where Naruto, who was once an outcast in the village, now has a harem of girls who fully accept and love him for who he is. And there's also the 'adventure harem' trope where Naruto goes on various adventures with his harem members.
One popular trope is the 'fish - out - of - water' scenario. For example, a Mortal Kombat character like Sub - Zero suddenly finding himself in the Naruto universe would be completely out of his element. He'd have to deal with things like ninja villages, chakra, and the complex social structure of the Naruto world. This trope allows for a lot of comical and also tense moments as the character tries to adapt.
One popular trope is the redeemed Akatsuki OC. This is where the character starts off as a typical Akatsuki member, but through interactions with the main Naruto characters, they see a different way and change their ways. Another trope is the hidden - identity OC. They pretend to be one thing within the Akatsuki, but in reality, they are working against the group for a greater good. The love - interest trope is also common, where the OC has a romantic relationship with one of the Naruto characters, like Sasuke or Naruto, while being part of the Akatsuki.
One popular trope is the merman Naruto having enhanced underwater combat abilities. Since he has the merman bloodline, he can swim at incredible speeds and use water as a weapon more effectively. For example, he might be able to create powerful water currents or whirlpools with just a flick of his tail. Another trope could be the isolation aspect. Naruto, as a merman, might be shunned by some in the ninja world who don't understand his kind. This could lead to a story of him trying to prove his worth and find acceptance among his peers.