Perhaps a plot where Draco has to prove himself worthy of Hermione. He has to make amends for his past actions. He starts by helping Hermione with some important research. As they work together, feelings develop. For their wedding, Draco arranges it to be in Hermione's favorite place - the Hogwarts library. He decorates it with floating candles and enchanted books, and they have a very unique and magical wedding surrounded by the knowledge that Hermione loves so much.
One idea could be that they have a secret wedding. Hermione and Draco realize their love for each other in a post - war world where they are both trying to heal. They keep their relationship a secret at first because they know it will be controversial. They finally decide to get married in a small, private ceremony in a secluded forest. Only a few close friends, who have come to accept their relationship, are present.
One plot idea could be the struggle of merging their two very different families. The Malfoys are pure - blood traditionalists and the Grangers are muggle - borns. There could be a lot of drama and misunderstandings as they try to plan a wedding that satisfies both sides. Another idea is that Draco and Hermione are trying to keep their relationship a secret from the wizarding world at first, because of their past as enemies. As they plan their wedding, they have to find a way to break the news in a way that won't cause chaos. A third plot could revolve around the wedding being a symbol of unity in a post - war wizarding world, where they use their union to show that old grudges should be forgotten and everyone should come together.
One plot idea could be that in a battle against a dark wizard, Draco jumps in front of a deadly curse meant for Hermione. This could lead to Hermione feeling a deep sense of guilt and obligation towards Draco's family. Another idea is that Draco sacrifices himself to save Hermione from a dangerous magical experiment gone wrong in Hogwarts. His death then spurs Hermione to find a way to reverse time or find a magical cure in his memory.
One plot idea could be that Draco kidnaps Hermione under the influence of a dark spell. He takes her to an old, abandoned manor. Hermione, being the intelligent witch she is, tries to find a way to break the spell on Draco while also trying to escape. She might start by using her knowledge of potions and magic to create a counter - spell.
One plot idea could be that their child has to navigate the complex social divide between the former Gryffindor and Slytherin groups at Hogwarts. Another could be the discovery of unique magical abilities that are a blend of Hermione's studious and powerful magic and Draco's pure - blood heritage magic. Maybe the child is caught in the middle of a new threat to the wizarding world and has to use both sides of their family's knowledge and influence to save the day.
Perhaps in the fanfiction, there's a school event where they have to swap clothes as part of a charm challenge. Hermione wearing Draco's clothes makes her see the Slytherin world from a different perspective. She might notice the small details in his clothes that reflect his status and family, which could lead to a deeper exploration of the Slytherin - Gryffindor divide.
A great plot for Harry and Hermione's wedding fanfiction could be that they face some sort of dark magic threat right before the wedding. They have to use their combined skills and the help of their friends to overcome it. Then, the wedding becomes not just a celebration of their love but also a victory over evil. For the actual wedding, Hermione could wear a dress that has some magical properties, like changing colors to match her mood, and Harry could have a special wand that he uses to create a unique display of magic during the ceremony.
A really interesting plot could be that right before the wedding, a dark wizard from Ron's past tries to disrupt it. Hermione and Ron, along with their friends, have to fight off the threat while still making sure the wedding goes on as planned. It would add a lot of action and adventure to the fanfiction.
In a fanfiction plot, there could be a situation where Hermione and Draco are both cursed. The only way to break the curse is to work together and learn to trust each other completely. They have to rely on each other's unique magical abilities. Along the way, they share their deepest secrets and fears, which brings them closer together. By the time they break the curse, their relationship has transformed from one of enmity to something more like friendship, with the potential for more.
A possible plot is that the boggart takes the form of a combined fear for both of them. It could be a powerful dark wizard who has enslaved the wizarding world, and only Hermione and Draco, with their combined knowledge and skills, can defeat it. As they face this boggart, they learn to trust each other more than they ever thought possible.
In some fanfictions, there could be a time - travel plot where Draco and Hermione from different timelines end up together and Hermione gets pregnant. This would involve dealing with the consequences of changing the timeline as well as their relationship dynamics.