One possible plot idea could be a character from the Harry Potter world, like Harry himself, discovers he has an affinity for the Force. He then has to learn how to balance his wizarding magic with Jedi - like abilities, all while facing threats from both the Death Eaters and Sith - like enemies.
I'm not sure of a specific 'Harry Potter Jedi Shadow' fanfic off the top of my head. But you can try searching on fanfic platforms like Archive of Our Own. They usually have a wide variety of fan - created stories that combine different elements such as those from Harry Potter and Jedi - like concepts.
Perhaps there is a prophecy in both worlds that involves a 'veil' and a'metamorphmagus'. A group of characters from both Harry Potter and Naruto universes have to come together to figure out what the prophecy means. The metamorphmagus ability could be key in unlocking the secrets of the veil. For example, the shape - shifting might be required to enter a hidden realm behind the veil. Along the way, they face challenges from both worlds, like dark wizards in the Harry Potter world and rogue ninjas in the Naruto world, and they have to use their combined skills and abilities to overcome these obstacles.
Well, in this type of fanfiction, we might see the Hogwarts houses having an impact on Jedi training. For instance, Gryffindors might be more likely to take risks in their Jedi training, like facing powerful Sith Lords without hesitation. Slytherins could use their cunning to outwit their opponents in lightsaber duels. Hufflepuffs might bring a sense of loyalty and community to the Jedi Order, and Ravenclaws could use their intelligence to study the ancient Jedi and wizarding texts to gain new powers and knowledge.
One interesting plot idea could be Susan's discovery of a long - lost magical artifact. For example, she might find an ancient spell book that has the power to change the course of the wizarding war. This could lead to her teaming up with Harry and his friends to keep it out of the wrong hands and use it for good.
Well, perhaps Harry is magically transported to the realm of the dark elves. There, he has to learn their ways and magic in order to survive. He could befriend some of the dark elves who are outcasts in their own society, and together they try to change the perception of the dark elves in the wider magical world. It could also involve a battle where Harry uses his new - found knowledge of dark elf magic to defend both the wizarding world and the dark elf world from a common enemy.
A possible plot could be that Supergirl somehow ends up in the Harry Potter universe. She might use her powers to help Harry and his friends in their fight against Voldemort. And during their adventures together, she and Harry develop feelings for each other.
One plot idea could be that Mavis gets lost in the wizarding world and Harry has to help her find her way back to her own world. Along the way, they face various challenges like dark wizards who want to capture Mavis for her unique magic. Another could be that there's a threat that endangers both their worlds, and they must combine their powers to stop it. Maybe there's a powerful dark force that is trying to merge the two worlds in a chaotic way, and Harry and Mavis are the only ones who can prevent it.
One plot could be that Harry Potter is bitten by a vampire during one of his adventures outside Hogwarts. He then has to struggle with his new vampiric nature while still trying to protect the wizarding world from dark forces. Another idea is that there is a hidden vampire community within the wizarding world that Harry discovers, and he has to deal with the politics and secrets there.
In a 'Harry Potter Immortal Gunslinger' fanfiction, there could be a plot where an entire group of immortal gunslingers are sent to the wizarding world to stop a great evil. They might be from a parallel universe where magic doesn't exist but advanced weaponry does. Their immortality gives them an edge as they battle against dark forces in the Harry Potter world. They could form alliances with the Order of the Phoenix or other good - minded wizards. Their gunslinger tactics and weapons could be a new and unexpected weapon against the dark arts. For instance, they might find that their bullets can disrupt certain dark magic spells, creating a whole new dynamic in the fight against evil in the wizarding world.
One possible plot could be that Sesshomaru somehow ends up in the wizarding world of Harry Potter. Maybe a magical portal or a powerful spell goes wrong. He then has to navigate this new world with its own set of rules and magic, and he might encounter Harry and his friends.