Typically, they often focus on the darker aspects of the characters' lives. For example, they might explore the traumas that characters like Harry, who has lost his parents, face more deeply. It can involve a lot of internal monologues where the characters are struggling with their emotions.
One really angsty 'Harry Potter' fanfic is 'The Green Girl'. It delves deep into the emotional turmoil of the characters, especially around themes of loss and unrequited love. The author does an amazing job of creating a dark and angsty atmosphere that really pulls you in.
One of the most angsty romance novels is 'The Fault in Our Stars' by John Green. It tells the story of two teenagers with cancer who fall in love. Their relationship is filled with the angst of dealing with illness, the fear of death, and the pain of leaving loved ones. Another is 'Wuthering Heights' by Emily Bronte. The love between Heathcliff and Catherine is full of intense passion and unending angst. Their relationship is thwarted by class differences, jealousy, and revenge.
Basilisks are also really feared in fanfiction. With their deadly stare and huge, serpentine bodies, they can cause a lot of destruction. Fanfic writers might make them even more intelligent or give them new abilities, which would make them even scarier. Plus, the fact that they can move around the castle unseen in the pipes adds to the horror factor.
One of the most popular Harry Potter fanfictions is 'The Seventh Horcrux' which has gained a huge following for its creative plot and well-developed characters.
There's a character in some fanfictions called Lyra, a half - veela who has the power to control emotions. She becomes Harry's love interest and her powers often come in handy during battles. Another interesting one is Orion, a powerful wizard who was once a student at Hogwarts but was banished for trying to expose a dark secret within the school. He returns to help Harry in his fight against Voldemort.
A really interesting plot twist in some fanfictions is that the Hogwarts houses are not what they seem. For example, Gryffindor was originally founded to be a sort of 'cover - up' for a secret society within Hogwarts that had a much darker purpose. Or that Slytherin was actually trying to protect the wizarding world from an even greater evil, but his methods were misinterpreted. This changes the whole dynamic of the story and how we view the different houses.
Harry Potter himself is often a central and popular character. Fans love to explore different aspects of his character, like his growth as a wizard and as a person. Hermione Granger is also popular as she can bring her intelligence and quick - thinking to new situations in the fanfiction. Ron Weasley too, as he provides the humor and loyalty that fans adore.
One interesting plotline is when Lily is given the chance to change the future. In some fanfictions, she has the power to go back in time and make different choices, like whether to marry James or not. Another is when she discovers hidden magic within herself that no one else knew about. This often leads to her having to face new challenges and enemies.
Sirius Black is often very popular. His mysterious past and his connection to Harry make him a great character to explore in fanfiction. Hermione Granger is also popular as she is intelligent and her actions often drive the plot in the third book.