Perhaps Harry would try to make the DADA classroom a more inclusive and safe space. He had faced so much discrimination and danger himself when he was a student. So he would ensure that no student, whether they are Muggle - born or pure - blood, would feel left out or threatened in his class. He could also use his Gryffindor courage to inspire students to stand up against any form of dark arts or bullying.
Another challenge would be keeping up with the ever - evolving dark arts. Harry has had his share of battles, but new threats are always emerging. He would need to constantly study and research to stay ahead, so that he can teach his students the most effective ways to defend themselves. Also, he has to balance his duties as a professor with his own personal life and possible future adventures.
Well, in this fanfiction, Harry might use his own experiences with dark magic to teach in a very practical way. For example, he could share how he faced Voldemort and his Death Eaters and turn those real - life situations into lessons on defensive magic. He might also introduce some new spells that he has learned or developed during his adventures.
Harry could also be a great Quidditch coach. He was an excellent Quidditch player himself. He would be able to train students in the skills of flying, teamwork, and strategy. He could pass on his love for the sport and perhaps even lead the school team to many victories. He would know how to spot potential in young players and help them develop their talents.
Well, the theme of friendship or a special bond between Harry and the Dada professor is a frequent one. They might start off as just teacher - student but then develop a deeper connection. Additionally, the theme of overcoming fear is often there. Given that Dada is about dealing with dark creatures and magic, Harry has to overcome his fears, and the professor helps him in this journey. This creates an interesting dynamic in the fanfictions.
One possible plot could be that Harry, after all his adventures, decides to return to Hogwarts to share his knowledge. He starts as an assistant professor, perhaps in Defense Against the Dark Arts. He uses his real - life experiences to make the classes exciting and relevant. His students look up to him, and he has to deal with some of the traditional Hogwarts politics among the staff.
Perhaps Harry becomes a professor of Transfiguration. He could introduce new spells and techniques he learned during his adventures. Since he was so good at it during his school days, he would be able to pass on his knowledge and also inspire students to be creative with their transfigurations. He might even have a special project where students try to transfigure something really complex, like a whole building, which he guides them through step by step.
If Harry accidentally becomes a fanfiction, he could end up with new powers or abilities. Fanfictions often play around with the original characters' capabilities. He might be able to fly without a broom or have some sort of mind - reading power that wasn't in the original books. This would completely change his interactions with other characters and the overall plot.
Ron could also be there. Maybe he's the keeper of the Gryffindor Quidditch team still, but also helps out with some practical magic lessons. He could teach students about the magical creatures he encountered during his travels, like how to handle a Hippogriff properly. He and Harry would often joke around in the staff room, reminiscing about their school days.
There might be a fanfiction where the DADA professor is actually an undercover wizard from a far - off land. He brings in unique teaching methods and magical creatures from his homeland, which both fascinates and challenges the students at Hogwarts.
In this fanfiction scenario, Ginny could be having trouble in her 7th - year Dada classes. Harry, as the professor, offers her extra help. As they spend more time together, old feelings start to resurface. Meanwhile, there could be a plot by a group of dark wizards to infiltrate the school, and Ginny and Harry have to work together to stop them, all while navigating their complex relationship.