One great one could be 'The Feline Adventures of Fem Harry'. It has an interesting plot where Fem Harry uses her cat form to explore Hogwarts in ways she couldn't as a human. The descriptions of her cat behavior are really cute and it adds a new dimension to the Harry Potter world.
A fanfic titled 'Fem Harry's Animagus Adventure' is quite popular. In it, fem Harry Potter's Animagus form is a sleek black panther. The story is not just about her being an Animagus but also about how it changes her relationships. For example, she has a different dynamic with Draco as she uses her panther form to intimidate him at times and also to understand his true nature better.
It completely alters the way she experiences Hogwarts. As a cat, she can access areas that are hard for a human to reach. She might discover secrets about the castle that no one else knows. And in terms of the plot, her cat animagus form could be a target for dark wizards who want to use her unique ability for their own gain, adding a whole new layer of danger to the story.
A great fanfiction idea could be that their cat Animagus forms are connected to their destinies. Perhaps there is an ancient prophecy that involves two cat - like beings saving Hogwarts. Harry and Hermione, in their cat forms, gradually learn about this prophecy and have to face challenges that test their friendship and magical abilities.
Well, the fanfiction could be centered around Harry's Animagus cat form getting into trouble because of a lemon - colored spellbook. He accidentally activates a spell from the book while in cat form, which turns part of Hogwarts into a lemon - scented maze. He then has to find a way to reverse the spell with the help of his friends, all while dealing with the challenges of being a cat in a maze.
In many Animagus fanfics with fem Harry Potter, she uses her Animagus form to break gender norms in the wizarding world. Her form may give her more freedom to move around and be more assertive than a typical female witch in that setting.
Well, it's interesting because it gives a new twist to the character. Usually, we see Harry as male, but when it's fem Harry, her journey as an animagus can be very different. She might face different challenges, like how society in the wizarding world might view a female animagus.
There might be a fanfiction where a cat Animagus is actually a long - lost relative of one of the main characters. They initially don't realize it, but as the story unfolds, the connection is discovered through the cat's unique behaviors and abilities. For example, the cat might be able to understand Parseltongue and it's this strange ability that leads to the revelation.
Crookshanks is often a popular choice. In fanfiction, he might be given even more powers or a deeper backstory as a cat Animagus. Writers might explore his connection to Hermione in a more magical way, like he was sent to protect her all along as an Animagus.
One possible fanfiction could be where Harry discovers his Animagus form as a cat early on. The 'lemon' aspect could be a small detail like he has a lemon - colored collar when in cat form. He might use his cat form to secretly explore Hogwarts at night, and the lemon - colored collar could be a way for his friends to identify him.