Well, his sisters from 'The Loud House' could make an appearance in some way. Maybe they get transported to the Pokemon world too, or they are just part of Lincoln's memories that he draws strength from. In the Pokemon world, he could meet classic Pokemon characters like Ash, Misty, and Brock. They could help him on his journey or be rivals in some Pokemon battles.
There could be some original characters created just for this fanfiction. For example, a young Pokemon trainer who becomes Lincoln's best friend in the Pokemon world. Also, the villains in the Pokemon world such as Team Rocket or other evil organizations could be in the story. And of course, a wide variety of Pokemon themselves are also characters in a sense. They could interact with Lincoln in different ways, some being friendly and helpful, while others being more difficult to deal with.
His sisters could be main characters. For instance, Lori might give him some advice on how to deal with the braces since she's the eldest and has more experience. Or Leni could be there to offer some fashion tips to make him feel better about his new look with the braces.
Perhaps the fanfiction could center around Lincoln getting a special Pokemon that no one has ever seen before. This Pokemon could have some kind of connection to his family back in 'The Loud House'. He then has to protect this Pokemon from various villains in the Pokemon world who want to use its power for evil. Along the way, he makes new friends and has all kinds of adventures.
One great Loud House Lincoln fanfiction is 'Lincoln's New Adventure'. It takes Lincoln on a journey outside of Royal Woods where he meets new friends and has to face some unique challenges. It's really exciting as it shows a different side of Lincoln's character.
One possible fanfiction could be that Lincoln constantly has bad luck in his attempts to get some alone time in the house. For example, every time he plans to have a quiet reading session in his favorite corner, one of his sisters accidentally spills something on him or makes a lot of noise right there. It could also be that his bad luck extends to school, where he always seems to be the one picked on by the teacher for things that are not his fault, like when his classmates play pranks and he gets blamed in the Loud House Lincoln - bad luck scenario.
On the positive side, it might force his sisters to reflect on their own behavior. If they realize that their actions led to Lincoln ignoring them, they could make an effort to change. And for Lincoln, he might find that he misses his sisters' company after a while, which could lead to a reconciliation where they all learn to respect each other's boundaries better.
One possible plot could be that Lincoln and Nikki are paired up for a school project. At first, they have some misunderstandings and different ideas on how to approach the project. But as they start working together more closely, they discover they have a lot in common. They both like the same kind of movies and books, and this mutual interest helps them to bond. Eventually, they complete the project successfully and their friendship deepens into something more, like a budding romance.
One idea could be a story where Lincoln and Lola have to team up for a school project. At first, they bicker as usual because of their differences. But as they work together, they start to understand each other better. For example, Lincoln realizes that Lola is not just a pageant - obsessed girl, and Lola sees that Lincoln has his own insecurities and strengths.
There could be many interesting fanfictions about Jordan and Lincoln in the context of Loud House for girls. Maybe it could be a story where Jordan and Lincoln team up to solve a mystery in the Loud House. For example, they might be trying to figure out why strange things are happening around the house, like objects moving on their own or mysterious noises at night.
Maybe Lincoln and Lucy Lemon get involved in a school project where they have to create a story about a haunted place. Since Lucy is into all things spooky, she takes the lead, but Lincoln has some creative ideas of his own. Their different perspectives lead to some hilarious and heartwarming moments as they work on the project.
One possible plot is that Jordan and Lincoln accidentally discover a time - traveling device in the Loud House. They then embark on a journey through different eras, experiencing the Loud House in various historical periods. This could lead to comical situations as they try to adapt to the different ways of life while also trying to find their way back to their own time.