Well, a possible plot could be a sort of exchange program between the two worlds. Some Naruto characters are sent to the KHR world for training and vice versa. Naruto himself could learn about the Dying Will Flame in the KHR world and use it in his own way. Meanwhile, Tsuna could pick up some ninja skills in the Naruto world. This would lead to a lot of character development as they adapt to new environments and learn from each other's strengths.
Naruto would likely keep his shadow clone jutsu. This would be useful for various tasks such as scouting, spying, or even creating a diversion during a fight or a heist in the mafia world of the KHR crossover.
Well, Naruto's strong leadership skills from being a ninja could translate well into being a mafia boss in the KHR world. He might use his rasengan in new and creative ways to intimidate rivals. His loyalty to his comrades would also be a big part of his mafia leadership, much like how he values his friends in the Naruto series.
I think Rock Lee and Gokudera would be a fun pairing. Rock Lee's extreme dedication to training and his unique fighting style would surely amaze Gokudera. Gokudera, in turn, could introduce Rock Lee to the power of the Dying Will Flame and how it can enhance combat abilities. Also, Kakashi and Reborn would be an interesting match. Kakashi's vast experience and intelligence combined with Reborn's shrewdness and unique training methods would make for some great interactions.
A light Naruto x KHR fanfic could have elements like comical misunderstandings, team-ups for simple adventures, and maybe a touch of romance without getting too intense. The tone is usually easygoing and doesn't delve deep into heavy drama.
Some khr crossover fanfiction involves 'One Piece'. Imagine the Straw Hat Pirates arriving in the world of 'Katekyo Hitman Reborn!'. Luffy's devil fruit powers would be an amazing contrast to the powers in khr. The crew could get involved in the mafia - like situations in khr, which would lead to some very exciting and unexpected adventures in the fanfiction.
Common themes in 'khr crossover highschool dxd fanfiction' include exploration of new abilities. Since both series have their own set of powers, seeing how they blend is a big part. Also, there's often a theme of facing new and greater threats. The villains from both universes might combine forces, leading to the heroes having to adapt and work together. There's also a bit of a cultural clash theme sometimes, as the two series have different settings and norms.
Yes, there are some. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'khr crossover highschool dxd' and you'll likely find a variety of stories.
One interesting HP KHR crossover fanfiction could be where the characters from 'Harry Potter' find themselves in the world of 'Katekyo Hitman Reborn!'. For example, Harry Potter might end up at Namimori Middle School and interact with Tsuna and his friends. They could learn about each other's magic systems, like how the magic in 'Harry Potter' is more traditional with wands and spells, while in 'KHR' it's more about the Dying Will Flame. Another story could involve the Death Eaters somehow getting involved with the Mafia in 'KHR' and causing chaos across both worlds.
There are some 'oc crossover khr fanfiction' that focus on the OC being a transfer student in the KHR school. This allows for a lot of character development as the OC has to adapt to the strange and dangerous environment. They might make friends or enemies among the canon characters, and their presence can change the course of events in the school.