One of the most creative crossovers could be having Naruto characters with Sharingan abilities in the Highschool of the Dead setting. For example, Naruto's determination combined with the power of the Sharingan could make for some really interesting survival scenarios. They could use their ninja skills to fight off the zombies in a more strategic way compared to the original Highschool of the Dead characters.
In terms of survival, Naruto characters are used to living in a world where they have to fend for themselves. In the Highschool of the Dead world, they could use their Sharingan to quickly assess threats and their ninja skills to find food and shelter. They might also teach the other high school students some basic self - defense techniques.
In a Sharingan Naruto Highschool DxD fanfiction, the Sharingan could also play a role in terms of illusions. Imagine a scenario where the character uses Sharingan - based illusions to deceive the enemies from both worlds. They could make a Highschool DxD devil believe they are in a completely different environment like a dangerous Naruto - style forest filled with traps. And for Naruto characters, they could be made to see illusions of their worst nightmares or false threats from the Highschool DxD world, which would make for some really intense and engaging storylines.
Naruto's experience in dealing with tough opponents in his own world would help him in the zombie - filled Highschool of the Dead. He would be able to quickly analyze the situation, figure out the weaknesses of the zombies, and come up with effective plans. His friendship - first approach might also lead to some interesting relationships with the other characters in this new and dangerous world.
One way could be through a crossover character. Imagine a character from Naruto's world ending up in the Highschool DxD universe with their Sharingan. They could use it in battles against the devils and fallen angels in the Highschool DxD world. For example, the Sharingan's ability to predict movements would give them an edge in combat.
One possible aspect of such a fanfiction could be the combination of Naruto's ninja skills in the zombie - infested world of Highschool of the Dead. For example, Naruto's shadow clone jutsu could be used to distract the zombies while the characters from Highschool of the Dead search for supplies or a safe place. His ability to move quickly and stealthily like a ninja would also be a great advantage in that dangerous setting.
Well, first of all, the writers often take the unique elements from each universe. From Naruto, it's the ninjutsu, kekkei genkai, and the concept of the ninja villages. From Highschool of the Dead, it's the zombie apocalypse and the school environment. They then find ways to make these elements work together. Maybe a character with a Sharingan from Naruto can use its powers to detect zombies from afar. Also, they might use the character relationships. A Naruto character could form a team with some Highschool of the Dead survivors to face the challenges together. And they might also play with the different values of the two universes. For example, the loyalty in Naruto and the survival instinct in Highschool of the Dead.
One way to incorporate Naruto's Rinne Sharingan in a Highschool DxD fanfiction could be through a crossover event. Maybe a character from the Naruto universe accidentally ends up in the Highschool DxD world and has the Rinne Sharingan. Their unique powers could disrupt the balance in the new world, leading to various interesting plot developments. For example, they could use the Rinne Sharingan's abilities to see through illusions in the Highschool DxD world which is full of magic and deception.
Yes, there are likely some available. You can try searching on fanfiction websites like FanFiction.net or Archive of Our Own. Just type in the relevant keywords, and you might find some interesting stories that combine the elements of Naruto, a godlike Naruto in this case, and the Highschool of the Dead setting.
One great Naruto and Highschool of the Dead harem fanfiction is 'Naruto in the Dead World'. It combines the action - packed elements from both universes really well. The story has Naruto suddenly finding himself in the world of Highschool of the Dead, and as he tries to survive, he also forms interesting relationships with the female characters. It's a really exciting read that keeps you on the edge of your seat.