Power struggle is a common theme. Naruto, who is known for his own power growth in the original series, often has to face the overwhelming power of the Demon King Daimao or its related entities. Another theme is the clash of good and evil. Naruto represents good, and the Demon King Daimao is the epitome of evil, so there's always that conflict.
The main characters would be Naruto, Simba, and Mufasa. Naruto enters the Lion King world and meets Simba. But through some magical or spiritual connection, he also gets to interact with Mufasa's spirit. Mufasa's wisdom combined with Naruto's skills and Simba's leadership would form the core of the story. They would face challenges together, like threats to the Pride Lands or internal power struggles within the animal kingdom.
In a Naruto - Skullgirls fanfiction, Sakura could team up with one of the Skullgirls. Sakura's medical ninjutsu combined with the brute force of a Skullgirl character would make a formidable duo. They could go on adventures together, facing off against common enemies. It would also be fun to see how the two different art styles blend in the fanfiction, like Naruto's more traditional anime look with the unique, somewhat gothic style of Skullgirls.
One possible scenario in a Naruto - Kaneki fanfiction could be that Kaneki somehow ends up in the Naruto world. Maybe through a strange portal or some sort of jutsu gone wrong. He might initially struggle to adapt to the different environment and the presence of chakra. But his own unique kagune abilities could be seen as a strange new form of power in the Naruto universe.
A Naruto and Albedo fanfiction crossover could be really interesting. They are from different fictional universes, Naruto from the ninja - filled world of Hidden Leaf Village and Albedo from the more fantastical world of Genshin Impact. In this fanfiction, perhaps they could meet through some sort of interdimensional rift. Naruto's skills as a ninja, like his shadow clone jutsu, could be a source of amazement for Albedo, who is more into alchemy and magic in his own world. They could team up to face a common enemy that somehow threatens both of their worlds, learning from each other's unique abilities along the way.
One possible fanfiction could be about Naruto and Kuroka teaming up on a mission. Maybe they are in a world where different anime universes collide. Naruto's skills in combat and his never - give - up attitude could be combined with Kuroka's unique powers to defeat a common enemy.
One popular 'Naruto Demon King Daimao Crossover Fanfiction' could be 'Naruto: The Demon King's Legacy'. It often features unique plot twists where Naruto is somehow involved with the powers or presence of the Demon King Daimao. Another might be 'Daimao's Influence on Naruto's World' which delves into how the arrival of Daimao's concepts or powers disrupts and changes the Naruto universe in interesting ways.
Naruto and Kyo Kusanagi would be a great pairing. Naruto's energetic and determined nature combined with Kyo's powerful fire abilities could create some amazing battle scenes. Also, Sasuke and Iori Yagami could be an interesting pair. They both have a dark side and a thirst for power. Their interactions would be full of tension and power struggles. Another good pairing could be Sakura and Athena Asamiya. Athena's psychic powers and Sakura's medical ninjutsu could lead to some unique team - up strategies.
Well, a really cool concept could be a villain that threatens both the Naruto and DBZ universes. So, characters from both sides have to team up to defeat this powerful foe. Imagine Vegeta and Sasuke having to work together, despite their initial differences. Also, there could be a story where the Dragon Balls are somehow transported to the Naruto world, and Naruto and his friends try to figure out what they are and how to use them.
One possibility in this fanfiction could be Naruto somehow getting involved with the power of the 7 Wizarding Swords. Maybe he is transported to a world where these swords exist and has to learn to use their magic in his own unique ninja way. He could combine his chakra with the magic of the swords to create new and powerful attacks.