Hermione would probably be very shocked at first. She has always seen Snape as a rather cold and unapproachable figure. But after some thought, she might understand Harry's motives if he explained that it was about finding common ground and healing old wounds. Ron, on the other hand, would likely be more openly skeptical and might make some sarcastic comments at first, but eventually come around when he sees the positive impact it has on Harry.
The other professors would have mixed reactions. McGonagall might be secretly pleased that there is some sort of reconciliation between Harry and Snape, as she has always been concerned about the strife between them. However, Filch might be scandalized, as he is used to the strict order and hierarchy at Hogwarts and such an unorthodox display of affection would seem out of place to him. The students would mostly be in awe or disbelief, and it would likely be the talk of the school for a long time.
One possible plot could be that after a particularly difficult battle, Harry realizes Snape's true self and the sacrifices he made. In a moment of understanding and new - found respect, Harry approaches Snape. Snape, initially hesitant, allows Harry to get close. They start to talk about their past misunderstandings, and as the conversation deepens, Harry, out of a sense of comfort and connection, cuddles with Snape as a sign of forgiveness and new - beginning.
Well, Harry could react with a great deal of suspicion. Since he and Snape have had a rocky relationship, he might think Snape is up to no good. He could try to gather his friends, like Ron and Hermione, to help him figure out what Snape's real motives are. Harry might also try to use his own wits and magic skills to outsmart Snape if he feels that Snape is being unfair or dangerous in his forcing of actions. He could also be very conflicted, on one hand wanting to trust Snape as Dumbledore did, but on the other hand being very wary due to their past interactions.
Often in fanfiction, the ring can be a plot device. It could be that Harry Potter unknowingly has a connection to the ring, and Severus Snape has to keep it from falling into the wrong hands. This creates a situation where Snape has to protect both Harry and the ring, leading to some tense and interesting storylines.
A lot of fanfic writers will create unique storylines for Snape's courtship. They might introduce an original character who manages to break through Snape's tough exterior. His courtship would then involve him struggling with his own insecurities and his reputation. This character might see the good in him that others overlook. There could be moments of tension and misunderstanding, but also deep, meaningful conversations as they get to know each other better.
In some fanfictions, Snape might share some of his knowledge about the wizarding world's secrets with Harry. Maybe he tells Harry about certain spells or magical artifacts that could help Harry in his fight against Voldemort. This act of sharing knowledge is a way of being nice as it gives Harry an advantage in his battles.
Snape's reaction would be complex. He has so much history with the Potter family. At the start, he might show his usual cold exterior. However, if Albus shows respect and a genuine desire to learn from him, Snape could gradually warm up. He might share some of his potions knowledge and secrets that he never shared with others. He may also tell Albus stories about his mother, Lily, in a roundabout way, to help Albus understand his family's past better and the sacrifices that were made for him to be alive.
Fanfiction about Severus Snape courting Harry Potter can range from quite romantic to more of a platonic exploration of their connection. Some fics might focus on Snape's redemption arc and how his feelings for Harry develop over time. It could also be a way to rewrite the somewhat tragic and unfulfilled aspects of Snape's life in the original books. However, it also needs to be done carefully to stay true to the essence of the characters and the magical world that J.K. Rowling created.
A really unique fanfiction concept could be one where Snape and Harry time - travel. They go back to key moments in wizarding history and have to work together to fix things that went wrong. This would be an exciting adventure and would force them to rely on each other.
One idea could be that Snape takes Harry in secretly. He teaches Harry advanced potions and magic in a more personal way, away from the prying eyes of Hogwarts. Harry begins to see Snape in a new light, not as the mean professor but as a strict yet caring guardian.
Yes, in certain fanfictions. Fan writers like to play with the established relationships in the original 'Harry Potter' series. They might decide to make Harry Snape's son to add a new layer of drama and mystery. For example, it could change the way we view Snape's actions throughout the series, as his protectiveness towards Harry could then be seen as a fatherly instinct.