Who are the most popular characters in 'Harry Potter meets Narcissa Malfoy' fanfiction aside from Harry and Narcissa?

There could also be other characters like Draco Malfoy. His mother being in this situation would surely have an impact on him. He might try to rescue her or come to terms with the new dynamic. And then there are Harry's friends, Hermione and Ron. They might have different views on the whole situation. Hermione could be more concerned about the ethical implications, while Ron might be more distrustful of Narcissa at first.

Hermione is often a very popular character. She's known for her intelligence and resourcefulness, and in fanfiction, she might come up with new spells or strategies to help Harry in his fight against Voldemort.

Their children are often very popular characters. James, Albus, and Lily Potter can have their own unique personalities and story arcs. For instance, James might be the mischievous one like his father was at his age, getting into all sorts of trouble at Hogwarts. Albus could be the more introverted and studious one, grappling with the weight of his father's legacy. And Lily might be the brave and headstrong girl.

Draco Malfoy is also quite popular. Fanfiction writers might explore his complex relationship with both Harry and Voldemort. He could be in a situation where he has to choose between his loyalty to his family (who has ties to Voldemort) and doing the right thing by helping Harry.

One popular type might be those that focus on their relationship within the complex wizarding world. For example, some fanfictions could explore how Narcissa's loyalty to her family and the Dark Lord might interact with Harry's role as the 'Chosen One'. It could show how their paths cross in unexpected ways, like in a political intrigue within the Ministry of Magic where they have to form an uneasy alliance to achieve their respective goals.

One idea could be that Harry discovers Narcissa has a secret mission to undermine Voldemort from within. Maybe she's been secretly helping the Order of the Phoenix all along and Harry stumbles upon this knowledge.

Hermione is often a popular character in these fanfictions. She might play a role in helping Harry and Draco get along or in uncovering the mysteries of the Goblet of Fire. Another could be Cedric Diggory. His death in the original story is a big event, and in fanfiction, he could be brought back in some way related to the Goblet of Fire's magic, and interact with Harry and Draco.

Hermione could be quite popular. In the fanfictions, she might be the one who tries to figure out the science or magic behind Elsa's powers. Another could be Ron, who might be initially skeptical of Elsa but then grows to be her friend. Olaf from Elsa's world could also be popular as he brings his unique brand of humor to the mix when he enters the wizarding world.

Marvolo Gaunt is also quite popular. As Merope's father, he represents the old, dark ways of the Gaunt family. Fanfiction might explore his relationship with Merope in more depth, like how he treated her, and whether he had any hopes or plans for her future that were different from what actually happened.

Obviously, Harry Potter and Grindelwald are the central characters in such fanfiction. But other popular characters can include Dumbledore. Since he has a long - standing history with Grindelwald, his presence can add depth to the story. Hermione Granger might also be a popular character as she could be the one providing the research and knowledge to help Harry in his encounters with Grindelwald. Also, Newt Scamander could be included as he has his own knowledge of magical creatures which could play a role in the story.