There's a fanfic called 'Lucius Malfoy's Pain'. Here, he gets hurt during a fight against a powerful dark wizard who turns out to be stronger than him. This not only injures him but also makes him question his own power and status in the dark arts world.
In the fanfiction 'A Different Lucius', he is hurt by the unexpected kindness of his enemies. He has always been on the side of the dark, but when his foes show him mercy, it shakes his world view. This emotional turmoil causes him great internal pain as he has to re - evaluate everything he has believed in.
One great fanfiction is 'The Dark Alliance'. It delves into how Lucius Malfoy maneuvers between Harry Potter and Voldemort. He tries to use his position with Voldemort to gain more power in the wizarding world while also being wary of Harry Potter's potential to defeat Voldemort. Another interesting one is 'Shadows of the Dark Lord'. In this, it shows how Voldemort manipulates Lucius Malfoy into spying on Harry Potter, creating a complex web of intrigue.
One interesting fanfiction could be where Lucius Malfoy's little sister is a rebel in the pure - blood society. She might secretly befriend Muggle - borns and try to change the views within her family. It could show her struggles between loyalty to her family's ideals and her own sense of right and wrong.
I'm not sure specifically if there are a large number of such fanfictions, but given the vast and diverse nature of the fanfiction community, it's very possible. It could be an interesting concept to explore, as it would completely change the power dynamics, the nature of Harry's relationships with Draco and other characters, and how the wizarding world views him. It might also lead to some really unique plotlines involving the Malfoy family's politics and their role in the wizarding world.
There's a fanfic titled 'The Unlikely Alliance'. In it, Lucius Malfoy, for some complex reasons related to the changing political climate in the wizarding world, decides to be nice to Hermione. He secretly provides her with information that helps her in her studies and later in some dangerous situations involving the Dark Arts. This fanfic really explores the idea of how two very different characters can come together.
One great Lucius Malfoy and OC fanfiction is 'The Malfoy Heir'. It has a really interesting plot where the OC is a powerful witch who gets intertwined with Lucius's family secrets. Another one is 'In the Shadows of Malfoy Manor' which delves deep into the relationship between Lucius and the OC against the backdrop of the wizarding world's politics.
There's a fanfic called 'Narcissa's Redemption'. After being shunned by the Death Eaters, Narcissa is in a state of emotional distress. A kind-hearted wizard helps her heal, and it's a really touching story about her finding comfort and a new purpose.
It is a rather interesting and somewhat controversial trope. Some fans are drawn to it because it presents a very different and unexpected relationship dynamic. However, it also goes against the traditional character alignments in the Harry Potter series. It's not as mainstream popular as some other pairings, but it has a niche following among those who enjoy exploring alternative relationships in fanfiction.
There's also 'A New Alliance'. It's a fanfic where Harry discovers some dark secrets about the Malfoy family that could change the power dynamics in the wizarding world. Lucius is portrayed in a more nuanced way, not just as a pure villain. The interactions between Harry and Lucius are filled with tension and unexpected moments of understanding.
One interesting time - travel fanfiction could be 'A Twist in Time'. In this fic, Lucius Malfoy accidentally travels back in time and has to deal with a young Harry Potter. It's a really cool take on how their relationship could be different in a time - altered scenario. Another one might be 'Time's Ripple' where Harry discovers a time - traveling device and ends up in a past where Lucius has a different role in the wizarding world. It plays with the power dynamics and the mystery of time travel in the Harry Potter universe.
I recall a fanfiction named 'Rose Malfoy's Pregnant Adventure'. It's quite interesting as it not only deals with the pregnancy itself but also how Rose discovers new things about herself and her place in the wizarding world during this time. It's a story that combines elements of self - discovery and the challenges of impending motherhood.