One idea could be a character from the Hanyou world ending up in the Naruto universe and having to adapt to chakra. Maybe they could teach the ninja some unique fighting styles from their world in return. Another idea is a crossover of the two worlds' magic systems, like how Inuyasha's Tessaiga might interact with Naruto's Rasengan.
For a Hanyou Naruto crossover fanfiction, you could explore the idea of a Hanyou character having a kekkei genkai - like ability in the Naruto world. This could lead to all sorts of interesting plotlines, like being hunted by ninja clans who want to study this new power. Or, what if a Naruto character travels to the Hanyou world and has to learn how to deal with demons there? They could form alliances with some of the Hanyou characters and learn about their way of life.
Well, a cool concept could be a Hanyou being mistaken for a new type of jinchuriki in the Naruto world. They would have to deal with the attention and also the danger that comes with it. And perhaps the Hanyou's demon side could be seen as a similar power to the tailed beasts. Also, a story where Naruto and a Hanyou team up to fight a common enemy that threatens both their worlds would be really exciting.
One interesting plot idea could be that Naruto somehow gets transported to the Inuyasha world. He teams up with Inuyasha and they have to face a common enemy, like a powerful demon that is threatening both the ninja world and the feudal Japan world. Naruto's unique jutsu combined with Inuyasha's sword skills would make for some epic battles.
One interesting idea could be the combination of Naruto's unique ninja abilities with the RWBY characters' combat styles. For example, Naruto's shadow clone jutsu might be used in creative ways in the RWBY universe, perhaps to confuse enemies during a battle. Another idea could be the exploration of how the different power systems, like chakra in Naruto and aura in RWBY, interact. Maybe a character with Naruto - like powers has to learn to adapt to using aura as well.
Naruto and Inuyasha would be an interesting pairing. Naruto's positive attitude and Inuyasha's more gruff nature could create some great character dynamics. They could learn from each other's fighting styles and outlooks on life.
One interesting 'hanyou naruto fanfiction' could be one where a hanyou character from another world somehow ends up in the Naruto universe and has to learn the ways of chakra. They might use their unique hanyou abilities in combination with ninja skills.
One interesting storyline could be Naruto having hanyou (half - demon) abilities that he has to hide from the village at first. Hinata discovers his secret and they embark on a journey to find a way to control his new powers. Along the way, they face challenges from both within the village who fear the unknown and from external forces who want to use Naruto's powers for their own gain.
Maybe the Akatsuki members could be a villainous wrestling gang. They could use their unique abilities, like Sasori's puppet techniques as part of their wrestling moves. Picture Sasori controlling puppets to attack his opponents in the wrestling ring while the referee is trying to figure out if it's legal or not.
One idea could be a crossover with the 'Dragon Ball' universe. Baby Naruto could meet Goku as a child and they could have a friendly sparring match. Another could be a crossover with 'One Piece', where Naruto ends up on the Going Merry and has adventures with the Straw Hat crew.
Well, a really cool concept for naruto tekken crossover fanfiction could be the incorporation of Naruto's transformation powers into Tekken's gameplay. Imagine Naruto transforming into his Nine - Tails form during a fight in Tekken. It would add a whole new level of power and strategy. Also, the story could revolve around the search for a way to return the Naruto characters back to their own world after they've been mysteriously transported to the Tekken world.
One interesting idea could be a battle scenario where Naruto's ninja skills are pitted against Android 18's superhuman strength. Maybe they start off as opponents but then have to team up to face a greater threat, like an ancient evil that has emerged in both their worlds. Another idea could be a story where Android 18 ends up in the Naruto universe and has to adapt to the ninja way of life. She could learn chakra control and use it in combination with her android powers.
One idea could be that Naruto characters are somehow transported to the Marineford world. For example, Naruto with his powerful jutsu might get involved in the battles at Marineford. He could use his Rasengan against the powerful foes there. Another idea is that the Devil Fruits in the Marineford world have an interesting interaction with the chakra system in Naruto. Maybe a character from Naruto eats a Devil Fruit and gains new and unexpected powers.