In some fanfictions, his other aunt might be a key figure in a hidden wizarding society. She could be part of a group that has been observing Harry from afar, waiting for the right moment to bring him into their fold and teach him things that Dumbledore or others haven't. For example, she might know ancient spells that can unlock hidden powers within Harry.
There could be a fanfiction where Harry's other aunt was in love with a dark wizard in her youth. This relationship could have had far - reaching consequences on the wizarding world. And now, with Harry in the picture, she has to face her past and make decisions that will either protect or endanger Harry. Her connection to this dark wizard might also be a link to some long - forgotten secrets about Harry's family.
One interesting 'Harry Potter Aunt Minnie' fanfiction could be about Aunt Minnie having a secret magical ability that she has hidden from the wizarding world all these years. Maybe she can communicate with magical creatures in a way no one else can.
There are fanfictions where Aunt Petunia has a change of heart towards Harry much earlier in the story. Instead of treating him badly, she starts to secretly teach him some basic things about the wizarding world that she learned from her sister Lily before she passed away. This could add a whole new dynamic to Harry's early years at the Dursleys.
There might be a fanfiction where the dragon familiar has a special bond with Harry that allows it to sense his emotions. So when Harry is in danger, the dragon comes to his rescue even without being summoned. It could add a whole new layer of adventure to the Harry Potter universe.
One possible fanfiction could be where Harry snaps his wand in a moment of extreme anger and despair after losing a dear friend. In this story, he then has to find a way to regain his magical abilities without his wand, perhaps through some ancient and forgotten magic. It could show his journey of self - discovery and growth as he copes with this new situation.
One interesting fanfiction could be about an exchange program between Hogwarts and Beauxbatons. In it, students from both schools learn about each other's cultures and magic in unexpected ways. For example, a Hogwarts student might struggle with the more refined and formal magic taught at Beauxbatons, while a Beauxbatons student could find the chaos of Hogwarts a bit overwhelming at first.
One interesting fanfic could be one where Harry's aunt has a change of heart. Maybe she discovers the truth about the wizarding world in a more positive way and starts to support Harry. For example, she could be accidentally exposed to some magic that makes her see how cruel the Dursleys have been to Harry and then tries to make amends.
One interesting fanfiction could be about the magic stones having a special connection to Harry's bag. Maybe the bag has a hidden compartment only accessible when the stones are near. It could be a story where Harry discovers this connection while on a dangerous adventure in Hogwarts, and the stones' power helps protect the contents of the bag which might hold some crucial secrets or items.
One great fanfiction could be where Harry and Neville team up to discover a hidden magic within Hogwarts. They might find a secret chamber that holds ancient spells and have to work together to unlock its mysteries. This could show their different strengths - Harry's courage and Neville's knowledge of plants and Herbology coming together in an exciting adventure.
One interesting 'Harry Potter' fanfiction could be where Harry is prone in a dangerous situation, like in a hidden chamber filled with dark magic traps. In this fanfic, his friends might have to figure out how to rescue him without setting off the traps.
One interesting fanfiction could be about the Dursleys having a change of heart before Harry goes to Hogwarts. Maybe they start to see the magic in him in a different way and struggle with their newfound feelings of protectiveness. It could show a different side of the usually cruel Dursleys.