One great fanfic could be 'A Moment of Comfort'. In it, McGonagall hugs Harry after a particularly difficult Defense Against the Dark Arts class where he was taunted by Draco. The hug is a motherly gesture that shows her care for Harry. It's a short but sweet fic that really captures the essence of their relationship.
There are several great 'Harry Potter McGonagall' fanfictions that are clean. For example, some focus on her role as a mentor. These stories might explore her relationship with Harry outside of the main plot of the books, like how she helps him with his Transfiguration skills during extra - curricular study sessions. They often highlight her strict but fair nature and her deep loyalty to Hogwarts.
One great Harry McGonagall fanfic is 'The Transfigured World'. It shows an interesting alternate universe where McGonagall has to deal with some unique magical challenges. Another is 'McGonagall's Legacy' which delves into her past and how it shapes her role at Hogwarts. And 'Harry and McGonagall's Unlikely Alliance' is also a good one, with a great plot of them teaming up against a common enemy.
One possible reason could be that she is under some sort of dark magic influence. Maybe a spell has been cast on her that makes her act out of character and abandon Harry.
She might use her magic skills to shield Harry from physical harm. For example, she could cast protective spells like a strong shield charm when Harry is in danger from dark wizards. Also, she may use her authority in Hogwarts to keep him away from those who wish to harm him, like making sure he is not alone in dangerous areas of the school.
One great example could be a story where Harry and Hermione hug after a particularly difficult battle at Hogwarts. They hold each other tightly, finding comfort in the fact that they both survived. The hug is a moment of pure relief and connection.
Perhaps when Harry is wrongly accused of something, and McGonagall uses her influence and knowledge to prove his innocence. She stands up for him in front of the whole school or the wizarding authorities, which is a very significant moment of her protecting Harry.
One great fanfiction could be 'A Moment of Comfort'. In this story, after a tough battle, Peter is shaken and Tony, seeing his state, simply pulls him into a warm, father - like hug. It shows their bond and how Tony is a mentor to Peter.
I'm not sure specifically which 'Harry McGonagall lemon fanfictions' are good as such content often goes against the spirit of the original work and may also be inappropriate. However, if you're interested in well - written fanfictions about Harry Potter and McGonagall in a more appropriate context, you can check out platforms like Archive of Our Own and look for fictions that focus on their teacher - student relationship in a positive and platonic way.
One great 'McGonagall raises Harry' fanfic is 'The Lion's Guardian'. In this fanfic, McGonagall takes on a very motherly role towards Harry. She protects him from the Dursleys much earlier and begins to train him in magic in secret. It's a heartwarming story that shows a different side of Harry's upbringing.
One popular 'Harry Pets McGonagall' fanfic could be 'The Magical Menagerie of Hogwarts'. In it, McGonagall might be involved in some interesting situations regarding the care and training of magical pets at Hogwarts. Another could be 'McGonagall's Secret Pet Project' where she undertakes a special mission related to pets in the wizarding world.