Well, in fanfiction, Flitwick could be portrayed as having a deep understanding of ancient protective magic. He might use this knowledge to create a sort of magical perimeter around Harry. He could also enlist the help of other magical creatures or objects within Hogwarts that are known for their protective qualities. For instance, he could get the help of the house - elves, who have their own brand of magic that could be used to keep Harry out of harm's way. And he may constantly be on the lookout for any signs of danger directed at Harry, using his magical senses to detect any malicious intents.
In some fanfictions, there could be new characters created specifically for the story. These could be dark wizards or witches who have a vendetta against Harry for some reason, and Flitwick has to step in to protect him.
It could strengthen Harry's relationship with the Hogwarts faculty. Since Flitwick is taking the time to train him, Harry might feel more connected to the school and its teachers. This could lead to him having more support from the faculty as a whole.
In some fanfictions, Flitwick might take the action of training students in advanced magic. He is a skilled wizard, after all. He could be teaching spells that are not typically covered in regular classes, like some rare defensive charms or complex transfiguration spells.
One common theme is Flitwick's expertise in charms. Many fanfictions explore his skills in teaching and creating new charm spells. Another theme is his relationship with students. Some show him as a mentor, guiding students through difficult times. Also, his role in the Hogwarts faculty is often explored, like how he interacts with other professors.
One great Filius Flitwick fanfiction is 'The Charms of Flitwick'. It delves into his early days as a teacher at Hogwarts, showing his struggles and how he developed his unique teaching style. Another interesting one is 'Flitwick's Hidden Talents' which reveals some unexpected skills he has aside from charms. And there's also 'In the Company of Flitwick' that focuses on his relationships with students and fellow teachers.
One possible plot could be that Flitwick focuses on teaching Harry advanced charm spells. He might see Harry's potential and take it upon himself to train Harry privately, away from the prying eyes of Snape or other potentially hostile teachers. This could lead to Harry having a new set of skills that come in handy during battles.
Harry might develop a different set of values. Flitwick has his own way of looking at the wizarding world. Under his care, Harry could grow to value knowledge and magical finesse more than he does in the original story. This could lead to a Harry who is more diplomatic and less impulsive when dealing with other wizards and witches.
Maybe it's about Harry learning some advanced magic spells from Flitwick. Flitwick could be teaching Harry unique charms or how to use his wand more effectively.
Well, for one, it's a fresh take. Fans are always interested in exploring different relationships within the Harry Potter universe. Flitwick is a respected teacher, and seeing him mentor Harry gives a new dimension to Harry's development. It also allows for the exploration of the charm aspect of magic more deeply. Since Harry has to face many challenges, having Flitwick as a mentor in charms can add new and exciting elements to how he overcomes those obstacles. Moreover, it can show how a less - prominent character in the mentoring role can have a significant impact on the main character, which is always an appealing story element.
In a lot of 'Professor Flitwick and Harry fanfic', the theme of self - discovery for Harry is present. Flitwick, through his wisdom and magical expertise, helps Harry understand more about himself and his potential. It could be about his magical abilities, his place in the wizarding world, or his personal values. This exploration often leads to Harry growing as a character and becoming more confident in his abilities.