Luna Lovegood could be a teacher too. She could teach about magical creatures in a very unique and in - depth way, especially those that are not so well - known. Neville Longbottom might teach Herbology. He has a great talent for it. And Hagrid could still be involved, perhaps teaching a more advanced course on magical creatures that are really dangerous, like giants.
Obviously, Harry himself would be one of the main teachers. He could teach Defense Against the Dark Arts. Hermione would also be a great teacher. She could teach Transfiguration as she was excellent at it. Ron might teach something like Care of Magical Creatures. He has a lot of experience with magical creatures from their adventures.
Obviously, Harry Potter himself would be one of the main teachers. He could teach Defense Against the Dark Arts, given his vast experience in that area. Hermione would be a great fit for teaching Transfiguration or History of Magic, as she has a deep knowledge of both.
Well, it could include advanced magic like time - turning spells. After all, Harry has had his own experiences with time - travel, so he might want to teach students how to use it safely. Also, there could be a course on magical creature care, especially for those dangerous ones like the Thestrals, which he's quite familiar with.
Maybe Hagrid could be one of the teachers. He's good with magical creatures, and he could teach about the ones that are relevant to flying. And McGonagall could teach transformation spells for flying machines.
Professor Snape is often very popular in such fanfictions. His complex character in the original series gives a lot of room for creative interpretations in fan works. Writers can explore his relationship with Harry in different ways, like having him be more of a mentor figure in ways that were not fully explored in the books.
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.
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.
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.
Well, one possibility is that Harry Potter builds the school in a hidden location, away from the prying eyes of the Ministry of Magic. He might create a curriculum that focuses on both traditional magic and new, unique areas of study that he discovered during his adventures.
In Harry Potter fanfiction, some might consider Remus Lupin as a very competent teacher. He has a deep knowledge of Defense Against the Dark Arts and is able to connect with the students on a personal level. He understands their fears and is patient in teaching them complex magic.
Well, if Harry Potter creates his own magic in fanfiction, it could lead to him being either celebrated or feared. On one hand, his new magic could solve many of the problems the wizarding world faces. But on the other hand, the Ministry of Magic might see it as a threat to their control. They could try to regulate or even suppress his new magical creations.