Often, in fanfiction Harry and Ginny are central to the social group. After the war, they could be involved in group activities like Quidditch matches where they play together or watch as spectators. They would cheer for their friends, and their presence would bring a sense of unity. Their relationship would also be a model for some of their friends. For example, Ron and Hermione might look to them for relationship advice, and they would happily offer their insights based on their own experiences.
Fanfiction may depict that Harry and Ginny use their influence to bring their friends together for important causes. After the war, there could be a need to rebuild Hogwarts or other parts of the wizarding world. They would call upon their friends, who are all talented in different ways. Harry and Ginny would act as the connectors, motivating everyone to work towards a common goal. Their interactions would not only strengthen their friendships but also contribute to the betterment of the wizarding community.
Harry could become an Auror, as he's always been good at fighting dark forces. Ginny, on the other hand, might continue her career in Quidditch. They would support each other's choices. Harry would cheer for Ginny at her matches, and Ginny would be proud of Harry for his work in keeping the wizarding world safe.
Some of their other friends from Gryffindor might take sides. There could be a group that blames Harry for being too preoccupied with post - war matters and not giving enough attention to Ginny. Another group might think Ginny is being too impatient with Harry's recovery process. This could create some tension among their friend group for a while until they all learn to accept the break - up.
Another way they could interact is through magical research. Maybe Fleur is interested in some of the spells Harry used during the war, and she approaches him to learn more. This could lead to a series of meetings where they exchange knowledge and gradually become closer as they discover more about each other's magical abilities and interests.
In some fanfictions, their interaction could be more casual. They could meet at social gatherings in the wizarding world. Harry would be the famous hero, and Tonks would be the friendly Auror. They could share a laugh, talk about the latest Quidditch matches or new spells that have been developed. It would be a normal, friendly interaction between two people who know each other.
In certain 'Harry Ginny after the war fanfic', Harry starts to see the wizarding world in a new light. He's no longer just focused on fighting dark forces. Ginny encourages him to explore the positive aspects of the wizarding world, like the different cultures of magical creatures. Ginny also matures in how she handles relationships. She becomes more understanding of Harry's responsibilities, and they work together as a team to face any new challenges that come their way, whether it's dealing with a new threat to the wizarding world or just the normal challenges of married life.
They probably start by getting married and setting up a home. Maybe they choose a cozy cottage near the Burrow. It gives them a sense of closeness to family while also having their own private space.
Harry, with his experience in fighting dark magic, might teach the younger generation how to defend themselves. Ginny could assist in training witches, especially in the area of using magic in a more creative and effective way in combat situations. Together, they could also work on improving the security of the wizarding world, making sure that the mistakes of the past are not repeated.
In some fanfictions, they might become friends through shared adventures in the wizarding world outside of Hogwarts. For example, they could team up to solve a mystery in a nearby magical forest.
One possible story could be that after the war, Harry suffers from paraplegia due to some dark magic he endured during the final battle. Ginny stays by his side, being his strength. She helps him through the difficult process of physical therapy. Their love becomes even deeper as they face this new challenge together.
Some fanfictions might depict them as having a more adventurous post - war life. They could be involved in rebuilding the wizarding world in a more hands - on way. Harry might use his fame and Ginny her popularity among the younger wizards to bring about positive changes. Their relationship would be based on mutual respect and a shared goal of making the wizarding world a better place.