Some fanfics could be about different romantic pairings. Instead of the common Hermione - Ron and Harry - Ginny pairings, there could be fanfics in 'hell harry potter fanfic' that explore Harry with Luna or Hermione with Draco, which would bring out very different character interactions and plot developments.
There might be fanfics that focus on the backstories of minor characters. In 'hell harry potter fanfic', perhaps there are stories about the life of a house - elf we barely knew in the original books, like Dobby's early years at the Malfoy Manor.
Another way is to follow authors who are known for writing great 'Harry Potter' fanfics. If you find an author whose work you really enjoy in 'hell harry potter fanfic', chances are their other works will also be good. They often have a consistent writing style and quality that you can rely on.
One popular Harry Potter fanfic is 'The Life and Times of Severus Snape'. It delves deep into Snape's backstory and his complex relationship with the other characters. Another is 'Draco Malfoy and the Mortifying Ordeal of Being in Love', which gives a different perspective on Draco's character. There's also 'Manacled', which is known for its dark and complex plot that explores the wizarding world in a more mature way.
One interesting fanfic could be those that explore James Potter's time at Hogwarts before Harry was born. It might show his adventures with his friends, like Sirius and Remus. Another could be a fanfic where James Potter somehow gets to interact with Harry in a time - traveling scenario, which would be really cool.
One interesting 'Harry Potter' fanfic could be those that explore different relationships between the characters. For example, a fanfic might focus on the friendship between Harry and Neville in more depth, showing how they support each other in ways not fully explored in the original books. Another could be a time - travel fanfic where a character goes back in time to change certain events in the wizarding world. There are also fanfics that might give more backstory to minor characters like Luna Lovegood, making her character even more fascinating.
One possible plotline could be how the Dursleys face magical mishaps in their daily lives that drive them crazy. For example, maybe Dudley accidentally gets turned into a pig by a stray spell and the Dursleys have to deal with that chaos. Another could be that they are constantly haunted by strange magical creatures that are attracted to Harry's presence in their house.
A great number of sub - Harry Potter fanfics are centered around the magical creatures. For instance, fanfics that explore the world of the centaurs in more depth, their culture and how they interact with the wizarding world. There are also fanfics that look at the house - elves and their possible liberation or their secret powers that were not fully explored in the original books.
There could be fanfics that rewrite certain plot points. Maybe a fanfic where Sirius Black doesn't die. It can be really interesting to see how the author would handle the continuation of the story with Sirius still alive, and how it would change Harry's journey at Hogwarts and his fight against the Dark Arts.
One interesting storyline could be an old Harry Potter looking back on his adventures and sharing his wisdom with the new generation at Hogwarts. He might tell tales of his battles against Voldemort in a more nostalgic way, and how those experiences shaped the wizarding world today.
Luna Lovegood often becomes an extremely interesting character in these fanfics. Her unique view of the magical world can lead to some really cool midnight escapades. For instance, she might lead Harry on a midnight search for a rare star - related magical object that is only visible at midnight.
One funny 'Harry Potter' fanfic could be about the Hogwarts professors swapping personalities. Imagine Snape suddenly being as jolly as Hagrid! Another might be a story where Harry and his friends accidentally turn into magical animals and have to figure out how to reverse the spell while in those forms. And there could also be a fanfic where the Marauders' Map starts giving really wacky and untrue directions just for laughs.