In this fanfiction, it might be that Harry is taken from the Dursleys and thrust into a completely different magical world situation. For example, he could be placed in a magical community that has its own unique set of rules and traditions. He may have to learn to adapt quickly, and along the way, he could face challenges that test his character and magical skills. This could lead to him growing in ways he hadn't before, and making connections with characters that were previously only on the periphery of his life.
One possible plot could be that the moment Harry is taken from the Dursleys, he starts to uncover secrets about his family that the Dursleys had been hiding from him. This could include information about his parents' true identities within the wizarding world, or secrets about a hidden power that he has inherited. As he delves deeper into these secrets, he might attract the attention of both good and bad forces in the wizarding world, leading to a series of adventures where he has to decide who to trust and how to use his new - found knowledge.
Well, Harry Potter is surely one of the main characters since the title implies it's about him being taken from the Dursleys. There might also be some original characters created by the fanfiction writer to play important roles in Harry's new journey.
In some of these fanfics, one interesting plot could be Harry finding solace in an unexpected friendship with a local magical creature that the Dursleys were unaware of. This gives him a sense of purpose and connection outside of the neglect he faces at home.
In some fanfictions, the Dursleys might be portrayed as having a change of heart. For example, they could start to secretly admire Harry's magical abilities instead of resenting them. This can add an interesting twist to the original story.
One great fanfiction could be 'A New Beginning'. In it, Harry is taken from the Dursleys in a very unexpected way. Maybe a powerful wizard, seeing the mistreatment, decides to rescue him early. Another could be 'The Escape'. It might focus on Harry's journey after being taken from the Dursleys, how he discovers new magic and new friends outside of the Dursley environment. And there's also 'Harry's New Path' which could explore how Harry's character develops differently without the influence of the Dursleys.
One prank could be Harry using magic to make all of Dudley's clothes two sizes too small overnight. Another might be making the Dursleys' living room furniture float whenever they try to sit down. And he could also use magic to make the food on their table turn into slugs when they're about to eat.
One idea could be exploring how the Dursleys react when Harry starts to show signs of magic before he even goes to Hogwarts. Maybe he accidentally makes Dudley float during a family dinner.
In certain fanfictions of this type, Harry could be found by a powerful but reclusive wizard. This wizard decides to mentor Harry in the ways of ancient and lost magics. Harry then uses this knowledge to not only become a very powerful wizard but also to change the wizarding world's view on things like blood purity. He may also go on a journey to find out why the Dursleys abandoned him and in the process, uncover some dark secrets about his family that had been long buried.
One interesting Dursleys fanfiction could be about Dudley's life after learning the truth about the wizarding world. Maybe he starts to have a change of heart and tries to make amends for how he treated Harry over the years.
Perhaps in the fanfic, a time - traveling wizard goes back to save Harry from the Dursleys. This would lead to a lot of changes in the timeline. Harry might be introduced to magic much earlier and form different relationships. He could also have a different understanding of his parents' history and his own role in the wizarding world as a result of being removed from the Dursleys' environment.
Well, one interesting plot could be Harry being taken in a more mysterious and magical way than in the original story. Maybe there are new magical creatures involved in his rescue from Privet Drive. Another could be that the person who takes him has a hidden agenda that slowly unfolds throughout the fanfic.