There's also 'The Uzumaki in DxD'. In this fanfic, Naruto's character development is well - written as he adapts to the new rules and challenges in the DxD world. The story has some great fight scenes where Naruto uses his jutsu against the devils and angels in the DxD universe.
One great Naruto, Gilgamesh and DxD fanfiction is 'The Convergence'. It has an interesting plot where the main character from Naruto somehow gets involved in the world of DxD and encounters Gilgamesh. The story is well - written with great character interactions.
There's also 'Phoenix's Redemption'. In this fanfiction, the OC phoenix character has a troubled past and is trying to find their place in the world of Highschool DxD. It has some great character development and action scenes.
One main theme is power. Since both Naruto and DxD have characters with various powerful abilities, fanfictions often explore how these powers interact and compare. For instance, Naruto's chakra - based powers against the devil fruits or sacred gears in DxD.
One interesting fanfiction could be one where Naruto has werewolf - like abilities in the Highschool DxD universe. Maybe he uses his ninja skills along with his new werewolf powers to navigate the complex world of Highschool DxD. For example, he could use his enhanced senses from the werewolf side to detect hidden enemies in the school, and his ninja jutsus to fight them off. Another could be a story where the characters from both series cross paths in a unique way, like Naruto being mistaken for a new type of devil or something similar.
One great 'Op Naruto Highschool DxD' fanfiction is 'Naruto in the World of Highschool DxD'. It has an interesting plot where Naruto's skills and abilities from his own world blend well with the unique setting of Highschool DxD. The story focuses on how he adapts to the new environment and the relationships he forms with the characters there.
One popular Naruto and Highschool DxD harem fanfiction is 'The Shinobi of Kuoh Academy'. It combines the ninja elements from Naruto with the supernatural setting of Highschool DxD in an interesting way. The main character, often a transfer student with Naruto - like abilities, navigates through the complex social and supernatural hierarchies while building his own harem.
A third option could be 'Naruto and Highschool DxD: The Ghoul Invasion'. Here, the world of Naruto and Highschool DxD is suddenly invaded by ghouls. The story follows the heroes from both universes as they try to figure out the origin of the ghouls and how to stop them. It has a complex plot and well - developed characters.
One great Naruto Asia Crossover DxD fanfiction is 'Naruto in the DxD World'. In this story, Naruto's unique skills and his never - give - up attitude really shake things up in the DxD universe. His ninjutsu abilities add a whole new dimension to the battles and political intrigue in the DxD world. Another interesting one is 'DxD with a Naruto Twist' which combines the mythologies of both Naruto and DxD in a really cool way, like how Naruto's tailed - beast power interacts with the Devils and Angels in DxD.
There's also 'Dragon - Ninja - Devil Alliance'. This fanfiction is all about an alliance formed between the different factions of the three series. It's action - packed from start to finish. The battles are well - described, and it's exciting to see how the characters with different abilities from Naruto, dragons in Highschool DxD, and their own unique skills come together to fight common enemies.
In some 'Cold Naruto DxD Fanfiction', Naruto might be an outcast in the DxD world at first because of his strange cold powers. But as the story progresses, he shows his true strength and earns the respect of the characters like Issei and Rias. He could use his cold powers in creative ways, like freezing the movement of enemies or creating ice - based defenses.