It could be that they meet during a pre - Hogwarts magical education class. They are the only two students who seem to understand a complex magical theory that the teacher is trying to explain. This shared intellectual understanding draws them together, and they start to exchange notes and study together, forming a bond that might be shattered once they arrive at Hogwarts and are sorted into different houses.
One possible plot could be that they meet at a wizarding event in their early childhood. Maybe their families are both attending a magical fair, and the two boys, not yet influenced by the future rivalries at Hogwarts, strike up a friendship over their shared love for magical creatures. They might spend the day together looking at baby unicorns and discussing their favorite magical beasts.
If they were friends before Hogwarts, it could create a lot of internal conflict at Hogwarts. Draco might be torn between his new Slytherin friends who dislike Harry and his long - standing friendship with Harry. He might try to keep their friendship a secret, which could lead to misunderstandings between them.
In some fanfictions, they might initially dislike each other. Draco, with his pure - blood supremacist upbringing, could look down on Harry. For example, he might make snide remarks about Harry's lack of knowledge about the wizarding world. However, this early encounter could also lead to a different dynamic later at Hogwarts. Maybe Harry would be more prepared to face Draco's taunts because of this prior meeting.
Well, perhaps Harry inherits some rune - related knowledge from his parents. He unknowingly uses runes to keep himself safe from the Dursleys' worst behavior. When he finally goes to Hogwarts, he realizes that his rune knowledge is far more advanced than his peers. He might then use it to solve mysteries around the school, like decoding ancient runic inscriptions in the castle. He could also make friends with those interested in runes and together they form a sort of rune - study group that uncovers secrets about Hogwarts' past.
Perhaps they work in different departments. Harry could be in charge of the Quidditch team coaching, while Draco is in the administrative side, handling student discipline. They constantly butt heads because of their different approaches. Harry is more lenient and believes in second chances, while Draco is stricter. However, when Hogwarts faces an external threat, they have to put aside their differences and work together to protect the school.
One possibility is that they meet in Diagon Alley. Maybe Ginny is there with her family, getting her school supplies, and Harry just happens to be in the same shop. They could share a brief moment, like a shy smile or a simple hello. This encounter could be the start of a pre - Hogwarts friendship that they keep secret until they meet again at school.
One possible plot could be that they meet during a wizarding event in France. Fleur, being from a French wizarding family, might be at a magical fair. Harry could be there with the Dursleys on a 'family' trip (forced by the Dursleys to go to France). They accidentally cross paths and Fleur, sensing Harry's unique magical aura, strikes up a conversation. This could be the start of an interesting pre - Hogwarts friendship.
One possible plot could be that they meet in a muggle library. Hermione is there researching magic in the guise of general knowledge books, and Harry stumbles upon her while looking for a quiet place to escape from the Dursleys. They start chatting about books, and Hermione is intrigued by Harry's strange yet endearing manner. They then realize they both have a connection to the magical world.
One possible plot could be that they meet in Diagon Alley. Maybe Harry is lost while shopping for his school supplies and Daphne helps him find his way. This could start a friendship where they exchange stories about their expectations for Hogwarts. It might also be a chance for Daphne to see Harry as more than just the famous Boy - Who - Lived, and for Harry to make a friend outside of the Weasleys and Hermione.
The plot could start with Draco accidentally getting caught in a magical mishap involving a strange plug - like object. This object could have some sort of spell on it that causes his clothes to disappear, leaving him naked. And the story could then revolve around his attempts to get his clothes back while dealing with the embarrassment and the reactions of other Hogwarts students.
One reason could be that he's being hidden by some powerful magic from a group that wants to use him for dark purposes. Maybe there are dark wizards who know of his future importance and want to either kill or control him, so a good wizard has made him disappear.