Well, it could be a total chaos. Harry's values are so different from the Malfoys'. He might constantly clash with Draco and Lucius. But on the other hand, it could also lead to some interesting character developments. Maybe Harry could gradually change the Malfoys' views on Muggle - borns over time.
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.
One interesting plotline could be Harry learning the pure - blood traditions from the Malfoys in a different way than he expected. He might gain a new perspective on the wizarding world's social hierarchy.
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.
It would be very strained at first. The Malfoys would see Harry as an intruder and a symbol of what they oppose. But as time goes on, they might start to see his good qualities. Harry, for his part, would always be on guard but might also feel a bit of pity for them as he learns more about their insecurities.
His relationship with Draco could force him to be more empathetic. Instead of just seeing Draco as an enemy, he has to live with him daily. This could lead to Harry developing a more nuanced understanding of people, and his character could become more forgiving and less impulsive in his judgments.
One example of 'good Malfoys' in fanfiction could be a scenario where Draco Malfoy has a change of heart early on. He might start to question the pure - blood ideology his family has instilled in him. In some fanfictions, he could secretly help Harry Potter and his friends. This could be due to a growing sense of morality within him, seeing the unjust actions of the Death Eaters.
Family bonds can also play a role. If the Malfoys, especially Narcissa, see that Voldemort's actions are endangering Draco, they might turn against the Dark Lord. Their love for their family member can override their loyalty to the Dark side, making them 'good' in the context of the fanfiction.
Well, the concept of 'Harry Potter Saved by the Malfoys' in fanfiction is really interesting. It plays with the characters' established personalities. The Malfoys are known for their pure - blood supremacist views in the original books. But in fanfiction, the author might create a backstory or a situation where they have a change of heart. For example, perhaps Draco Malfoy realizes the error of his family's ways and decides to save Harry from a great danger. There could be many different interpretations and plotlines in such fanfictions. You could start by looking at the most reviewed or highly rated ones on the fanfiction websites to get a good read.
One interesting portrayal is when Draco is made into a reluctant ally of Harry. In some fanfictions, he realizes the error of his ways early on and starts to secretly help Harry and his friends. This is a departure from his antagonistic role in the books.