One plot idea could be that they are forced to work together on a school project that requires them to explore each other's family histories. This makes them realize they have more in common than they thought. Another could be that they discover a secret magical realm only they can access together, and in the process, they form a bond. Or perhaps they are both framed for a crime and have to rely on each other to clear their names.
Well, a really interesting plot could be set during a time when Hogwarts is under threat from an external dark force. Harry and Draco, despite their past differences, find that their combined skills and knowledge are the only hope. For example, Harry's bravery and Draco's in - depth knowledge of some of the more esoteric magic passed down in his family. As they work side by side, they start to see each other in a new light and become friends. Also, it could start with Draco getting in trouble with some dangerous wizards outside of Hogwarts and Harry being the only one he can turn to for help. Through this experience, they gradually build a friendship.
A plot could involve a magical object that has been lost in the Forbidden Forest. Harry and Draco both have different reasons for wanting to find it. Harry might think it could help defeat Voldemort or some other future threat, while Draco is interested in it for its historical value to his family. As they search together, they face many challenges like dangerous creatures and tricky magical traps. Along the way, they have to trust each other and share their magical abilities. This shared experience makes them friends. They also start to understand each other's values and motives better as they argue and then resolve their differences during the search.
Well, in this type of fanfiction, a possible plot is that Harry is sold due to a powerful curse placed on his family. Draco, who has a change of heart over time, tries to break the curse. This could lead to a journey of self - discovery for both of them. They might also discover secrets about their families' pasts that are intertwined. Also, the situation could force them to work together against a common enemy that emerges because of Harry's new 'ownership' status.
One plot idea could be that they discover their family connection early on. Maybe they find a hidden family tree or an old letter that reveals the truth. This could lead to them having to work together secretly to protect their newfound family bond from the wizarding world's prejudices.
One interesting plotline could be them teaming up to solve a mystery within Hogwarts that neither the Gryffindors nor the Slytherins are aware of on their own. For example, a hidden chamber that has secrets about the founders that could change the way the houses interact.
Perhaps they were separated at birth due to some dark wizard's plot. As they grow up, they start to notice strange similarities in their magical abilities and instincts. When they find out they are triplets, they join forces to uncover the mystery behind their separation. They might face many obstacles, like opposition from their respective families who have different beliefs and values. Harry's Gryffindor - like courage, Draco's Slytherin cunning, and Blaise's own unique traits would all play a part in this adventure.
One interesting plot idea could be that they discover they are brothers early on. They then have to deal with the shock of it within the context of the Hogwarts houses. Harry might try to bring Draco closer to his friends, which could lead to some really funny and awkward moments as Draco is used to his Slytherin clique. Another idea is that they work together to uncover secrets about their family, secrets that could change the wizarding world's view of their family's past.
Maybe Harry has to go undercover among the Death Eaters to gather information for the Order of the Phoenix. During this time, he befriends a Death Eater who is having second thoughts about Voldemort's ideology. They start to work together secretly to undermine Voldemort's plans from within the Death Eater ranks.
One idea could be that they discover a hidden magical place in the grounds of Hogwarts as children. They keep it a secret from everyone else and it becomes their special retreat. They meet there to share their thoughts, Hermione's love for books and Draco's family pressures. It could also be a place where they practice magic away from the prying eyes of teachers and other students.
In this fanfiction, perhaps Draco and Sirius have to go on the run together. Sirius has experience with being a fugitive, and he could teach Draco how to survive while being hunted. This could lead to a deep bond between them as they rely on each other for survival. Along the way, Draco could learn about Sirius's past, including his time at Hogwarts and his relationship with James Potter. This new knowledge could make Draco re - evaluate his own life and the choices he has made so far.
One idea could be that Harry and Draco find a magical toy that has the power to transport them to different wizarding worlds. They have to work together to find their way back home. Another could be that they both inherit a collection of enchanted toys from an old wizard, and they must figure out how to use the toys to solve a mystery in Hogwarts.
One idea could be that Harry and Draco find an abandoned magical baby and they have to work together to take care of it. This forces them to put aside their differences and learn about each other in a new way.