He could meet a brilliant but eccentric teacher. This teacher might be an expert in a very rare branch of magic that Harry has never heard of before. The teacher could take Harry under their wing and teach him things that Dumbledore or the other Hogwarts teachers never did.
Well, he might make new friends. In a new school, Harry would be exposed to different students and personalities. He could meet a group of outcasts who are actually really powerful in magic but are shunned for some reason. They might form a secret club together to practice unique spells.
One possible plot could be that Harry Potter decides to open his own school to teach a new generation of witches and wizards in a more inclusive and modern way. He might incorporate Muggle - friendly elements into the curriculum, like teaching about Muggle technology from a magical perspective. He could also focus on teaching students how to use magic for good in the real - world situations that the wizarding world now faces, such as dealing with dark magic that is becoming more complex and hidden.
His first recruit could be Neville Longbottom. Neville has proven himself to be brave and skilled in magic, especially after his growth during the Battle of Hogwarts. He would be a great asset to the sellsword company with his knowledge of herbology, which could come in handy for making potions for protection or healing in their missions.
Harry might first decide on the values of his world. Is it a world that values equality above all? Based on that, he'd then start to create institutions. He could build a magical council that enforces these values. He would also need to think about the inhabitants. Would he populate it with new species or just bring in his old friends? He could use his creativity to design unique magical creatures that are different from those in the original Potter world. And of course, he'd have to establish a system of magic that is distinct yet still related to what he already knows.
It means that Harry Potter's character continues to exist and develop in the world created by fanfiction writers. Fanfiction allows fans to explore different scenarios and storylines for Harry that may not be in the original books or movies.
In this fanfiction, Harry could use his extensive knowledge of potions from his Hogwarts days. He might create unique potions that combine the traditional magic of potions with his own experiences. For example, a potion that gives the drinker a sense of calm during a Dementor encounter, using the essence of happy memories as an ingredient. He could also hire some of his old classmates like Neville, who has a great talent for Herbology, to supply rare ingredients for the shop.
Hermione would be an obvious choice. With her intelligence and vast knowledge of magic, she could handle the more academic and research - related aspects of the business. For example, if they were starting a magical library business, Hermione would be in charge of cataloging and sourcing rare books. She could also help with any legal or ethical issues that might arise in the wizarding business world.
Neville would likely be one of the first to join. He has always been brave and has a strong sense of justice. Luna Lovegood might also be part of it. Her unique perspective and knowledge of the wizarding world could be very useful. And then there are the Weasley twins. Their skills in magic and their ability to think outside the box would make them great assets.