I'm not really sure about specific popular ones. Fanfiction can vary a great deal, and this is a rather niche topic. You might try searching on specialized fanfiction websites like Archive of Our Own and use those keywords to find relevant stories.
There could be a power struggle of sorts. The Malfoys, with their long - standing status in the wizarding community, might try to assert their dominance. However, the Grangers, with Hermione's knowledge and her family's support, won't be easily pushed around. This could lead to some heated exchanges that gradually turn into a more respectful relationship as they understand each other better.
The Malfoys could save Harry in fanfiction because of a personal debt. Maybe Harry once unknowingly did something that benefited the Malfoys greatly. This could be as simple as preventing a disaster from befalling their family business or saving the life of a family member secretly. When the time comes, the Malfoys feel obliged to return the favor and save Harry from whatever danger he is in. Also, it could be part of a complex plot where the Malfoys are trying to redeem themselves, and saving Harry is a big step in that direction.
In Harry Potter fanfiction, the Malfoys are often portrayed in a more complex and sometimes positive light. Some fanfictions might explore Draco Malfoy's struggle between his family's beliefs and his own emerging sense of right and wrong. He could be shown as having a change of heart, perhaps influenced by his interactions with Harry and his friends. This gives a new dimension to his character that we don't fully see in the original books.
In some fanfictions, Hermione might be related to the Malfoys through a complex family secret. For example, there could be a long - lost family connection that was hidden for years. Maybe an ancestor from Hermione's family had a relationship with a Malfoy in the past, which led to some sort of blood - related connection that only gets revealed in the fanfiction world. This connection then changes the dynamics between Hermione and the Malfoys, leading to interesting plot twists and character developments.
It could also be a part of a plot by the Malfoys to gain influence. They know Harry is a well - known figure in the wizarding world. By calling him and interacting with him, they might hope to improve their public image or gain some political leverage within the wizarding community.
Hermione is the central figure who drives much of the action. Her interactions with the Malfoys are what the fanfiction is often centered around. The Malfoys, with their Slytherin traits, contrast with Hermione in many ways. Their different beliefs and values create the basis for a lot of the drama and character development. Whether it's Draco's initial hostility towards Hermione or Lucius' attempts to maintain the family's status in the face of Hermione's presence, these characters are essential to the story.
In fanfiction, their relationship can be complex. Sometimes they might be forced to work together against a common dark threat. For example, in some stories, a new dark wizard arises who is more powerful than Voldemort, and both Harry Potter and the Malfoys have to put aside their differences to stop this new evil. It could also involve a change in Draco Malfoy's character, where he starts to see Harry in a different light and they form an uneasy alliance.
I'm not really sure if there are popular ones specifically. Fanfiction can cover a vast range of really odd and unique concepts, but the idea of male Death Eaters in diapers is rather strange and not a common mainstream fanfiction theme. It might exist in some very niche corners of the fanfiction world, but it's not something I've come across frequently.