A really interesting plot could involve the reader being a Muggle - born who discovers a magical ability that no one has ever seen before. The Weasley twins, being curious and always interested in the extraordinary, take the reader under their wing. They explore this new ability together, getting into all sorts of adventures and misadventures at Hogwarts. This could also lead to a romantic relationship as they get closer through their shared exploration.
How about a plot where the reader is a healer in training at St. Mungo's? The Weasley twins get injured during one of their wilder experiments and are brought to the hospital. The reader is assigned to take care of them, and at first, the twins are their usual mischievous selves, driving the reader crazy. But over time, the reader sees their softer sides, and a connection develops. This could be a great way to show a different side of the twins and create a unique 'Weasley Twins x Reader' story.
One great one is 'Pranks and Promises'. It shows the twins' mischievous side while also developing a really sweet relationship with the reader. The story is full of their signature pranks and how the reader gets involved in them.
One plot idea could be that the reader is a new student at Hogwarts who is having trouble fitting in. Ginny takes the reader under her wing and shows them around. As they spend more time together, they develop a strong bond. Another could be that the reader has a special magical ability that only Ginny seems to understand, and they have to work together to figure out its origin and how to use it for good.
One idea could be that Harry and the Weasley twins team up to play a huge prank on Snape. They use a combination of Fred and George's magical inventions and Harry's invisibility cloak to get into Snape's office and rearrange everything in a really chaotic way.
One idea could be Percy trying to understand the twins' pranks and finally joining in on one. Another could be the twins getting Percy to loosen up during a stressful time at Hogwarts, like exam week. Maybe they play a prank that backfires and Percy has to help them fix it without getting in trouble with the professors.
One idea could be the twins inventing a new type of magical prank product that has unexpected effects on Hogwarts. For example, it might make the staircases act even more erratically than normal, causing chaos throughout the school.
A great plot could be that the reader is an apprentice at Weasley's Wizard Wheezes. They start off not getting along with George because they have different ideas about the products, but as they work together on a new line of magical jokes, they gradually fall in love. Or perhaps the reader is a Muggle - born who gets lost in Diagon Alley and George is the one who finds and helps them. This leads to a series of adventures as he shows them around the wizarding world and they develop a bond.
If you know any other Harry Potter fans who are into fanfiction, ask them. They might have their own personal collections or know of some hidden gems. Additionally, when you read a Weasley twins x reader fanfiction that you like, check the author's profile. They may have written other similar stories or you can find other works they recommend.
Another plot could be that the OC is a muggle - born with an uncanny ability to see through magical illusions. The Weasley twins, known for their love of creating illusions, initially see the OC as a threat to their pranks. But as they get to know the OC better, they realize that they can use this ability to create even more elaborate and undetected pranks. This would involve a lot of character development for all of them as they learn to trust and rely on each other.
One idea could be a story where the reader is a new hero in the Injustice 2 universe. Superman, initially suspicious, starts to see the good in the reader. As they team up against common threats, a bond forms between them. Maybe the reader has a unique power that Superman comes to rely on.
One idea could be that the reader is a new student at the university where Tadashi studies. They meet in the robotics lab and start collaborating on a project, which leads to a budding friendship and then romance.