Another plotline could be that Harry, in his teaching role, discovers a new and powerful form of defensive magic. He then has to decide whether to share it with the entire wizarding world or keep it within Hogwarts for the safety of his students. This could lead to a conflict with the Ministry of Magic, who may want to use the magic for their own purposes. Also, some students might be jealous of the attention Harry gives to certain students who show great potential in this new form of magic.
One possible plotline could be Harry finding some ancient potions book in the library that has unique brewing methods. He then secretly practices them in an abandoned classroom.
Obviously, Harry Potter is the main character as he is the one doing the teaching. His students would also be important characters. This could include well - known characters like Neville Longbottom, who might struggle at first but then thrive under Harry's teaching. Ginny Weasley could also be a prominent student in the class, showing great skill and courage.
One interesting plotline could be Snape finally seeing Harry's potential in potions and secretly mentoring him outside of class. This could lead to a grudging respect between them.
Well, in some 'kakashi teaches naruto fanfiction', there might be a plotline where Kakashi teaches Naruto how to better control his chakra. This could involve some really intense training sessions deep in the forest. Also, Kakashi could be teaching Naruto about the art of stealth and infiltration, skills that Naruto doesn't have much experience with but are crucial for a ninja.
One interesting fanfiction could be 'The New Defense Professor'. In this, the new professor brings a completely different teaching style, mixing modern combat magic with traditional defensive spells. Another is 'Defense Against the Dark Arts: A New Era' where the professor has a mysterious past that ties into an ancient dark magic threat.
One interesting aspect could be how Harry Potter might use his own unique experiences in the wizarding world to shape the fanfiction he writes. For example, he could write about his adventures with Hermione and Ron in a more creative and detailed way, adding elements that were left out in the original books.
Well, some might involve magical creatures with furry characteristics in new adventures at Hogwarts. For example, a werewolf character could have a unique story arc that intersects with the main Harry Potter plot. Maybe they are trying to find a cure or dealing with the prejudice within the wizarding world in a different way than what's in the original books.
One possible plotline could be a comical take on baby Harry's magical mishaps. Maybe he accidentally makes his diapers levitate or turns his crib into a mini Hogwarts. Another could be about how the other characters like Hagrid or Dumbledore interact with baby Harry in this unique situation, perhaps trying to figure out how to handle his early magical outbursts while he's still in diapers.
Perhaps a plotline where the ogre has some sort of special power that the wizards in Harry Potter are interested in. This could lead to a whole series of events where they try to either control or cooperate with the ogre.
In some fanfiction, a familiar might get lost in a different dimension. So, the main character has to go on a journey to find it. Along the way, they meet strange new creatures and learn new spells, which is really exciting. It also shows a different side of the bond between a wizard and their familiar.