One idea could be a crossover with Spider - Man. She - Hulk and Spider - Man team up to take on a new villain in New York. Maybe this villain has the ability to manipulate technology and is causing chaos in the city. Another plot could involve a crossover with Doctor Strange. She - Hulk accidentally gets caught in a magical spell and is transported to a different dimension. She has to work with Doctor Strange to find her way back home while also dealing with the threats in that dimension. A third plot could be a crossover with the X - Men. She - Hulk joins forces with the X - Men to protect mutants from a new anti - mutant group that is using dangerous new weapons.
She - Hulk could cross over with Captain Marvel. They could be brought together by a cosmic threat that endangers both Earth and other planets. The two powerful heroines have to combine their strengths and different powers to defeat this threat. For example, Captain Marvel's ability to fly and shoot energy blasts combined with She - Hulk's brute strength could be a great combination against a huge alien menace.
One idea could be that the Hulk somehow gets transported to the DC universe. Maybe due to a freak accident involving some sort of interdimensional portal created by Lex Luthor in an attempt to bring in a powerful being to defeat Superman. The Hulk then starts rampaging through Metropolis, and Superman has to figure out how to stop him without causing too much destruction himself. He tries to reason with the Hulk at first, but when that doesn't work, he has to use his strength and speed to keep the Hulk occupied until they can find a way to send him back to his own universe.
One idea could be that they team up to face a new super - villain who is immune to normal Hulk - like strength. So, they have to combine their smarts and unique Hulk - related abilities in a new way. Another could be a story where they explore their family connection in a more in - depth way, like dealing with the implications of being related Hulks in a world that still doesn't fully understand them.
A plot could revolve around a scientific experiment gone wrong that affects only them. They start to lose control of their powers in different ways. Hulk might become too calm and lose his rage - fueled strength, while She - Hulk might turn into her human form at the wrong times. They have to work together to reverse the effects of the experiment, all while dealing with the problems that come with their power - changing states.
One possible plot could be that Naruto is on a mission in a new land and accidentally stumbles upon a strange experiment that creates a Hulk - like being. Naruto, with his never - give - up attitude, tries to communicate with the Hulk - figure, thinking it's just a misunderstood being. He uses his shadow clones to surround the Hulk and tries to calm it down with his positive energy. Eventually, they team up to fight a common enemy that threatens both their worlds.
One idea could be that the Hulk somehow gets transported to the wizarding world. Maybe a magical experiment gone wrong by a Hogwarts student creates a portal. The Hulk's brute strength would be a shock to the wizards and witches. He could end up causing chaos in Hogwarts, knocking down walls and scaring students. Wizards would try to use spells on him, but his strength might make him resistant at first.
One idea could be that the reborn character has to deal with the Hulk's uncontrollable rage in a new way. Maybe they have some special ability from their rebirth that can calm the Hulk down. For example, they can communicate with the Hulk on a deeper level, like understanding his fears that fuel the rage. Another plot idea is that the reborn character uses the Hulk's strength to protect a world that is different from the original Hulk's universe. They might face new enemies and challenges that require both the Hulk's brute force and the character's unique knowledge from their past life.
Another plot could be that Tony creates a device that can transfer intelligence. He accidentally transfers some of his own intelligence into Hulk. This causes Hulk to become more intelligent and he starts to question his own existence and role in the world. Together, they embark on a journey to find a way to reverse the process while also learning a great deal about each other.
In this crossover fanfiction, the Hulk's strength could be used to help the Loud family in a big way. For example, there could be a natural disaster about to hit Royal Woods, like a huge flood or an earthquake. The Hulk, with his superhuman strength, could hold back the floodwaters or stop the shaking ground. Meanwhile, the Loud kids could be helping the townspeople evacuate. It would be a story of how two different universes come together to save a town.
One idea could be a character from the Enclave finding themselves in a situation where they have to team up with a group from the Fallout world they usually oppose. Maybe a lone Enclave soldier gets separated from his unit and is forced to rely on a group of wastelanders to survive. This could lead to a lot of character development as he sees a different side of the world outside the Enclave's ideology.
One idea could be that She - Hulk and Daredevil team up to take on a powerful new villain in Hell's Kitchen. This villain could have some sort of ability that makes them difficult to detect, which plays to Daredevil's radar - sense and She - Hulk's brute strength.