Well, in some fanfics, like 'The Darker Side of Redemption', Lucius is given a chance at redemption after the fall of Voldemort. Harry plays a key role in this process, either by being a reluctant helper or an unexpected friend. The plot often involves exploring the darker parts of the wizarding world that were not fully shown in the original books.
A really interesting plot can be found in 'Lucius Malfoy's Secret Mission'. Here, Lucius is sent on a secret mission by the Ministry, and Harry is somehow involved. The story plays with the idea of trust and betrayal between the two. It's fascinating to see how their different views of the wizarding world collide and interact during this mission. This fanfic also has some great descriptions of the hidden corners of the magical society.
One possible storyline could be a female Harry Potter having to work with Lucius Malfoy in a situation where they have to put aside their differences. For example, in a magical crisis that threatens the entire wizarding world. Maybe they start off distrusting each other but gradually come to respect one another as they realize they both have unique skills and knowledge that can help solve the problem.
Well, a plot line could involve Fem Harry Potter being undercover in Malfoy Manor for some important mission. Lucius Malfoy, suspecting something is amiss, starts to investigate her. As he gets closer to uncovering her true identity, he finds himself in a moral dilemma. He's a Death Eater, but he's also intrigued by this strange girl. Or perhaps there's a plot where Fem Harry Potter has to team up with Lucius Malfoy against a common, even greater enemy, like a dark wizard who's more powerful and dangerous than Voldemort.
One of the most interesting things is the exploration of Draco's character. In the official books, he's often seen as a bully. But in fanfiction, we can see his vulnerability and the pressure he's under from his family. Also, the relationships between the Malfoys and other families are often explored. How they interact with the Weasleys or the Potters in alternate scenarios is really engaging. And sometimes, fanfictions create new magical elements related to the Malfoy family, like a hidden Malfoy family magic that's been lost for generations.
Another plot might involve Lucius Malfoy being cursed and Harry Potter being the only one who can save him. As Harry tries to find a way to break the curse, they start to understand each other on a deeper level. Their relationship evolves from one of enmity to something more complex, filled with mutual respect and a new - found understanding.
One interesting plot could be Harry growing up in the Malfoy Manor and having to deal with the pure - blood ideology from a different perspective. He might struggle between his own sense of right and wrong and the values imposed on him by the Malfoy family.
The plot where Murtagh teaches Harry some of his unique magic techniques is really cool. It shows how different magical systems can interact. For example, in a fanfic I read, Murtagh showed Harry how to use a spell that was common in his world but unheard of in Hogwarts.
Another interesting plot is a time - travel one. Hermione goes back in time and has to interact with a younger Lucius and Snape. It's fascinating to see how her knowledge of the future affects her interactions with them and how they react to her. For example, she might try to prevent certain events that Lucius or Snape were involved in, which could change the course of the wizarding world.
One reason could be for the greater good of the wizarding world. If Lucius is healed, he might be able to turn away from the Dark side and provide useful information about Voldemort's remaining followers.
Well, in some fanfictions, Harry might use his advanced magic skills he learned from Dumbledore's old books. Maybe he discovers a long - forgotten spell that can reverse the dark magic effects on Lucius.
In 'The Mysterious Bond between Harry and Grindelwald', the plot focuses on a strange, unspoken bond that seems to exist between the two. This bond affects their decisions and actions throughout the story. It's a unique take on their relationship and makes for a very engaging read.