One idea could be that the Loud siblings discover they have magical abilities and are sent to Hogwarts. Lincoln could be sorted into Gryffindor for his courage in dealing with his large family. Another could be that a wizard from the Harry Potter world visits Royal Woods and gets involved in the chaos of the Loud family. Maybe they help the family solve a mystery using magic.
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 that the Loud family somehow gets transported to Gotham City. Lincoln could befriend Robin and they team up to solve a mystery that involves both Gotham and Royal Woods' villains. Maybe the Joker has a plan that involves stealing a special item from Royal Woods, and the Louds have to work with Batman to stop him.
One great Harry Potter Loud House fanfiction is 'The Loud House at Hogwarts'. It's really interesting as it combines the two universes in a very unique way. The characters from The Loud House are magically transported to Hogwarts and they have to adapt to the wizarding world while also dealing with their own family dynamics within this new setting.
In some fanfics, a character from The Loud House turns out to be a long - lost relative of a major Harry Potter character. For example, Luna Lovegood's long - lost cousin could be one of the Loud sisters. It's a really unexpected connection that changes the whole dynamic of the story.
One way it could work is by having Spiderman visit Royal Woods for some reason. Maybe he's chasing a villain who has some connection to the town. Once there, he meets the Loud family and gets involved in their wacky antics.
One example could be a crossover where the characters from 'The Loud House' meet the characters from 'IT' in a strange town. Maybe the Loud siblings end up in Derry and have to face Pennywise together with the Losers Club. It could be interesting to see how the different personalities from 'The Loud House' react to the terrifying situations in 'IT'.
In such a fanfiction, the characters from 'The Loud House' could find themselves in Spyro's world. Maybe Lincoln Loud might team up with Spyro to fight some common enemies. For example, they could face a villain who is causing chaos in both their worlds. The Loud siblings' unique personalities could add a new dynamic to Spyro's adventures.
One possible plot could be that Casper, the friendly ghost, gets lost in Royal Woods where The Loud House is located. The Loud kids discover him and at first are scared, but then they realize he's friendly. Together, they help Casper find his way back to the Ghost World while having all sorts of wacky adventures in Royal Woods, like trying to hide Casper from their parents and getting into spooky yet funny situations at school.
The plot could involve the Hulk being shrunk down to the size of the Loud House family. He would then have to live with them and adapt to their chaotic household. The Loud kids would be fascinated by his strength and the Hulk would learn about family values from the Louds. There could be comical scenes where the Hulk tries to fit in, like sitting on the tiny furniture or trying to eat normal - sized food.