Some great stand user crossover fanfiction concepts could include a crossover with the characters from Attack on Titan. Stand users could use their abilities to fight Titans, perhaps a stand that can fly would be really useful in that world. Also, a crossover with the Final Fantasy series would be interesting. Stand users could be part of a party in a fantasy world, and their stands could be like unique summons or special abilities within the game world.
One idea could be a crossover between Jojo's Bizarre Adventure stand users and the characters from Naruto. For example, imagine a stand user having to face off against ninjas in the Hidden Leaf Village. Another could be a crossover with the world of Harry Potter, where stand users attend Hogwarts and their stands interact with magic. Maybe a stand user's ability could be related to a particular spell or magical object.
You could create a stand user who has a stand that can transform into different magical creatures from the Fairy Tail world. For example, it can turn into a dragon to fight against dragon slayers gone bad or transform into a celestial spirit to help in celestial spirit - related quests. This would add an interesting dynamic as the stand user has to learn to control these different forms and their unique abilities.
For a crossover with 'E.T. the Extra - Terrestrial', the boys from 'Stand by Me' could stumble upon E.T. in the woods. They would then have to protect him from the government agents. This would bring a new level of adventure and a touch of sci - fi to the 'Stand by Me' world. They could also use their friendship and loyalty to keep E.T. safe and help him get back home.
One interesting stand user gamer fanfiction could be about a stand user who uses their stand powers to gain an edge in a virtual reality gaming world. For example, they might use their stand's ability to manipulate time to slow down the in - game actions, giving them more time to strategize.
Another concept might be an OC with a Stand that has the ability to manipulate time. In the DxD world filled with battles and power struggles, this could be a game - changer. The OC could use it to freeze time during combat, giving them an edge, or to reverse time to undo a harmful spell or attack.
One idea could be a puppet user who discovers a hidden power within their puppets that allows them to communicate with the spirits of past puppet masters. This could lead to a journey of self - discovery and learning new puppet techniques. Another idea is a puppet user who is an outcast in their village but uses their puppets to protect the very people who shun them. For example, they could secretly take on dangerous missions and save the village from threats without seeking recognition.
One interesting concept could be the combination of Naruto's ninja abilities with stand powers. For example, Naruto might use his shadow clones in a new way when paired with a stand ability. Another concept could be how the different characters from Naruto interact with stands. Maybe Sasuke's Sharingan has a unique reaction to stands.
First, decide which universes you want to cross over. For example, if it's Jojo's Bizarre Adventure and a superhero universe, figure out how the stand users and superheroes will interact. Then, create a basic plot. Maybe the stand users are brought into the superhero world to help fight a common enemy. Next, develop your characters. If a stand user meets Superman, how will they react to each other's powers? Start writing simple scenes and build from there.
One interesting idea could be a crossover with "Moana". Elsa's ice powers and Moana's connection to the ocean could create a really cool dynamic. Maybe Elsa accidentally freezes part of Moana's ocean and they have to work together to fix it. Another could be with "Tangled". Rapunzel's long hair and her adventurous spirit combined with Elsa and Anna's journey in Frozen 2 would be exciting. Rapunzel could use her hair to help them climb mountains or cross chasms. A third idea is a crossover with "Beauty and the Beast". Belle's love for books and knowledge could help Elsa understand more about her powers and the history of magic in the Frozen world.
A possible plot for Naruto poison user fanfiction is that the poison user is part of a long - forgotten clan. Their clan was shunned because of their poison - using abilities. The poison user decides to prove the worth of their clan by helping Naruto in a big battle. They develop new types of poisons that can immobilize opponents without killing them, which is very useful in the Naruto universe where not all enemies need to be killed. This way, they can also show that their skills can be used for good, not just for harm.
Perhaps in a fanfiction, there is a cursed scythe that has been causing chaos in the ninja villages. It has the power to corrupt those who touch it. A young ninja, who is an outcast, decides to take on the challenge of taming the scythe. As they struggle with the curse, they also face opposition from the villages who fear the power of the scythe, but in the end, they use it for good and prove everyone wrong.