Well, perhaps in the fanfiction, they are all entered into a magical tournament. Harry, being the young and brave one, Snape with his vast knowledge of magic, and Lucius with his family's resources. At first, they are rivals in the tournament but then realize that there is an outside force trying to manipulate the outcome for evil purposes. So they join forces. Or it could be that a powerful dark magic spell has been cast over Hogwarts, and only the combined magic of Harry, Snape and Lucius can break it. They start off distrustful but as they work together, they form an unlikely alliance.
Perhaps a plot where Voldemort discovers that Lucius has been having doubts about his leadership. He then tasks Snape with spying on Lucius. Meanwhile, Harry, through some magical accident, gets involved in this web of intrigue. The story could be about how Harry uses this situation to his advantage to try and bring down Voldemort's regime from within.
One plot idea could be that in a world where dark forces are targeting Hermione for her intelligence and her role in the fight against Voldemort. Snape, due to his complex relationship with the Order of the Phoenix, and Lucius, perhaps having a change of heart after seeing the true brutality of Voldemort's regime, team up to protect her. They could hide her in an old, magically protected manor that has been in Lucius's family for generations. Snape uses his skills in potions to create protective elixirs for her, while Lucius uses his knowledge of dark magic to set up wards that only they can pass through.
One idea could be that Harry and Lucius are forced to work together on a secret mission for the wizarding world. Along the way, they start to see each other in a new light and gradually form a bond. Another could be that they are both victims of a dark magic spell that makes them share emotions, leading to an unexpected connection. Maybe they discover a long - lost prophecy that ties their fates together and they must figure out how to fulfill it while dealing with their initial animosity.
One idea could be that Harry punches Snape in a moment of extreme frustration after Snape makes yet another snide comment about his father. Then, Harry realizes the gravity of his actions and has to face the consequences within Hogwarts, which could lead to a series of adventures as he tries to make amends while also uncovering some long - hidden secrets about Snape's true motives.
One idea could be a story where they are forced to work together on a dangerous mission for the wizarding world. They start off distrusting each other but gradually come to respect one another as mates. Harry's courage, Snape's cunning, and Lucius's ambition could combine in interesting ways to overcome the challenges.
Well, it could start with Harry having to take private lessons from Snape for some special magic he needs to learn. During these lessons, they begin to understand each other's past traumas and find common ground. Maybe there's a magical bond that forms between them accidentally, like a soul - bond, which makes them feel each other's emotions. This could lead to a slow - burning relationship as they figure out how to deal with this new connection. And also, a plot where they are both on a quest to find a lost magical artifact and in the process, their relationship evolves from animosity to love.
Perhaps in the fanfiction, Snape and Harry are forced to team up to defend Hogwarts against a new, unknown dark force. They have to rely on each other's skills and knowledge, with Snape using his potions expertise and Harry his courage and Gryffindor - like bravado. Along the way, Snape shares some of his own experiences with dark magic and how to combat it, making Harry a more well - rounded wizard.
One interesting plot idea could be that Snape, in raising Harry, teaches him advanced potions from a very young age. Harry becomes a prodigy in potions, much to the surprise of the other Hogwarts students. Another idea is that Snape's strict but fair upbringing makes Harry more reserved and less impulsive, which changes the way he interacts with his friends. He might be more cautious and calculating in his actions, especially when dealing with enemies like Voldemort.
One plot idea could be that Dudley somehow gets involved in the wizarding world due to a magical accident. Snape, initially reluctant, has to keep an eye on him. Meanwhile, Harry is caught in the middle, trying to balance his relationship with Dudley and dealing with Snape's grumpiness. For example, Dudley could accidentally drink a potion meant for someone else and start showing magical abilities, leading to chaos and an unlikely alliance between him and Snape to reverse the effects.
One idea could be that in an alternate universe, Snape manages to save Lily and they both play a big role in Harry's upbringing along with Hermione. Maybe Snape uses his potions expertise and Lily's charm work to create a special protection spell for Harry that Hermione later helps to understand and strengthen. Another plot could be that Lily didn't die but was in hiding, and when Harry enters Hogwarts, Snape has to reconcile his feelings for Lily with his role as a teacher to Harry, while Hermione gets caught in the middle trying to figure out the truth behind their complex relationships.