If Snape's family were to interact with the Malfoy family, it would be a complex situation. Snape had ties to the Malfoys in the past, but his new family might have different values. His family could try to distance themselves from the Malfoys' pure - blood supremacist views. Or, they could try to reform the Malfoys through their own positive influence, leading to some tense and thought - provoking interactions.
At first, Severus would probably be very suspicious of Harry. After all, Harry is an unknown figure suddenly appearing. But Harry, being the friendly person he is, would try to break the ice. He might start by complimenting Severus on his potion - making skills, which Severus is already quite good at even as a young boy. Their interaction would be a bit tense initially, but as they start to understand each other more, they could become friends or at least allies.
At the start, Snape would likely be quite suspicious of Naruto. He's used to a world full of secrets and might think Naruto is some sort of threat or spy. Naruto, being Naruto, would keep trying to break through Snape's cold exterior. He might start by complimenting Snape's skills in potions or magic. As time goes on, Snape might see Naruto's good heart and start to open up a bit more. They could end up having some interesting conversations about power, loyalty, and friendship. Naruto could tell Snape about his bonds with his friends in the ninja world, and Snape could share some of his own experiences with the Marauders from his school days.
In some fanfictions, Snape's relationship with Harry is shown as more of a father - son relationship. For example, in 'A Different Kind of Bond', Snape takes Harry under his wing early on, and they develop a mutual respect. This is very different from the strained relationship in the books.
In slash fanfiction, Harry's impulsiveness can sometimes clash with Snape's more reserved and brooding nature. But this also creates an interesting dynamic as Harry might be the one to break through Snape's walls. For example, in some stories, Harry's curiosity about Snape leads to them having more in - depth conversations that change their relationship.
Hermione would probably be very shocked at first. She has always seen Snape as a rather cold and unapproachable figure. But after some thought, she might understand Harry's motives if he explained that it was about finding common ground and healing old wounds. Ron, on the other hand, would likely be more openly skeptical and might make some sarcastic comments at first, but eventually come around when he sees the positive impact it has on Harry.
In many fanfictions, their interaction starts with suspicion. Snape is a very guarded character, and a female Harry Potter would be an unexpected presence. So, at first, he might be cold and distant.
Snape's character changes in his relationship with others too. He becomes more involved with the Hogwarts community as he is now responsible for Harry. He might start to collaborate more with other teachers, like McGonagall, who he previously had a rather cold relationship with. His attitude towards the students also changes as he realizes that they are just kids trying to find their way, much like Harry. This is a big shift from his usual strict and often unforgiving self.
The relationship would start off rocky. Snape would be resistant to Harry's kindness as he has always seen Harry as James Potter's son. But Harry's persistent efforts to understand and help Snape would gradually break down Snape's walls.
A family with a history of dark magic could put a strain on their relationship. If one brother wants to break away from that dark legacy and the other is more drawn to it. Say Severus is trying to distance himself from any dark magic associations, but his brother is fascinated by it. This would create a huge rift between them as they have different views on their family's past and future.
In some fanfictions, Snape might share some of his knowledge about the wizarding world's secrets with Harry. Maybe he tells Harry about certain spells or magical artifacts that could help Harry in his fight against Voldemort. This act of sharing knowledge is a way of being nice as it gives Harry an advantage in his battles.