On the other hand, Harry could be proud of himself for standing up for what he believes in. He may think that he has made Hogwarts a better place by getting rid of a teacher who was not treating students fairly. But at the same time, he might have mixed emotions as Snape was also an important part of the Hogwarts environment for so long.
Hermione could be a great help. She is very intelligent and resourceful. She could help Harry find evidence against Snape. For instance, if Snape is suspected of cheating in grading, Hermione could use her knowledge of Hogwarts' grading system and records to dig up proof.
In this kind of fanfiction, perhaps Harry discovers some serious misdeeds by Snape that lead to his dismissal. For example, Snape might be caught unfairly favoring Slytherin students in a major way, like giving them unearned high marks in exams while unduly punishing Gryffindors. Harry, being the observant and just character he is, would report this to the proper authorities at Hogwarts, which could be Dumbledore or the school board. And this could start the process of Snape getting fired.
There might be some out there in the vast world of fanfiction, but it's not a common or well - known type. Most Harry Potter fanfiction tends to focus on more positive relationships, like Harry's friendships, his adventures against Voldemort, or exploring the backstories of other characters. This kind of scenario you mentioned is rather unorthodox and might not be as popular or easily found.
Perhaps Harry witnesses Snape being extremely unfair to a group of students, like constantly giving them detention for no good reason. Harry decides to take a stand and gathers statements from the students. He then goes to the Hogwarts board of governors and presents his case, leading to Snape's dismissal.
For Harry Potter, it could be a mix of emotions. On one hand, he might be relieved as Snape has been tough on him. But on the other hand, he might also feel a bit guilty or confused, especially if he later discovers that Snape was wrongly fired. Hermione would probably be outraged at the injustice of it all and might try to find evidence to get Snape reinstated.
Well, it could be that Harry discovers some major misdeeds by Fudge. Maybe Fudge has been covering up dark magic activities within the Ministry. Harry then finds evidence and presents it to the proper authorities, leading to Fudge's dismissal.
No, it's not a proper or common expression at all. In the Harry Potter fandom, we usually use more appropriate and positive language to talk about characters reading fanfiction or any related scenarios. This statement contains a rather inappropriate and unclear term ('gets hard') that doesn't belong in the normal fandom vocabulary.
Dumbledore would probably first have a long conversation with Harry. He would want to understand Harry's concerns thoroughly. Then, he would talk to Snape privately. Dumbledore is very protective of Hogwarts and its students. If he found that Snape's actions were truly endangering the students or the school's harmony, he might consider some form of disciplinary action, but firing Snape might not be his first option. He would also weigh Snape's contributions to the Order of the Phoenix and the fight against Voldemort. He has a lot of faith in Snape, but he also respects Harry's instincts and would take his feelings into account.
One possible reason could be Snape's unfair treatment of Harry and his friends. Snape often showed blatant favoritism towards Slytherin students and was overly harsh on Gryffindors, especially Harry. This constant bias could lead Harry to want him fired. Another reason might be Snape's connection to the Dark Arts. Harry, having faced Voldemort, might be worried about Snape's knowledge and use of dark magic within Hogwarts. Also, Snape's generally unpleasant demeanor towards students could be a factor. His sarcastic remarks and cold attitude might make Harry think that he is not a suitable teacher for Hogwarts students.