One interesting plot could be where the characters face a miscommunication problem that spreads throughout the Loud House, causing chaos. For example, a simple message gets distorted as it passes from one sibling to another.
Maybe there's a plot where an outsider sends a mysterious message to the Loud family. The kids then have to work together to decode it. This could involve each of their unique skills and personalities coming into play. Like Lincoln using his leadership skills to organize the search for the meaning, while his sisters contribute their own knowledge and talents.
In some fanfictions, the 'get the message' theme could revolve around a time - traveling message. For instance, a message from the future arrives in the present at the Loud House. The family has to figure out how to respond to it and whether they should change the future based on what the message says. This could lead to a lot of internal family debates and moral dilemmas.
Perhaps there's a misdelivered message that causes chaos among the Loud siblings. For example, a love letter meant for someone else gets into the wrong hands, and they all start assuming different things about who likes who, leading to a series of comical misunderstandings.
Leni could be a fun character to center around. Since she's not always the brightest, a message that she misinterprets in her own unique way could lead to all kinds of humorous situations. For example, if the message is about a fashion show, she might think it's something completely different and start preparing for a very strange event.
A third plot could be centered around a time - travel aspect within the 'No Time to Spy' fanfiction. The Loud family could travel back in time to a period where there were famous spies, and they have to interact with these historical figures to stop a modern - day villain from changing history in a way that would endanger their present - day family and world.
One interesting plot could be the vampire sisters trying to fit into the Loud House family while hiding their true nature. Maybe they have to deal with the chaos of the Loud siblings while also craving blood in secret.
Lincoln is often a central character. Since he's the middle child, he usually gets caught in the middle of things and is in a good position to be involved in getting or spreading the message. He might be the one trying to make sense of a confusing message or passing on important information to his sisters.
Another plot might involve a character from the 'bad luck' side of the crossover coming to the Loud House world and bringing their bad luck with them. This could disrupt the normal family dynamics. The Loud siblings would then have to figure out how to get rid of the bad luck and restore order. They might try all sorts of wacky plans, like using their own unique skills and talents in a new way to combat the bad luck.
One idea could be a story where the Loud siblings discover a hidden attic in their house that leads to a magical world. Another could be a fanfiction focusing on Lincoln's adventures in a parallel universe where he has different superpowers. Maybe a story about the sisters teaming up to start their own band.
One interesting Loud House fanfiction could be about Lincoln going on a wild adventure in an alternate dimension. Maybe he discovers a new power or meets strange versions of his family members.
One plot could be that the male reader is a new student at the Louds' school. He quickly becomes friends with Lincoln and gets dragged into the whole 'sibling survival' concept. He could also be a part - time worker at a local store where the Louds often visit, and there are comical interactions as he tries to serve them and deal with their different personalities.
One interesting plot could be Lincoln getting involved in a mystery related to a lemonade stand. Maybe there are some strange things happening around the neighborhood's lemonade stands and he has to solve it. For example, the lemons keep disappearing and he uses his detective skills to figure out who's behind it.