One possible storyline could be Sky Harry discovers a hidden magic within Hogwarts that no one else knew about. Maybe it's a secret chamber that holds the key to an ancient magic that can defeat the darkest of dark wizards. Another could be Sky Harry having the ability to communicate with magical creatures in a unique way, leading to him forming an alliance with them to protect the wizarding world. And he might also have a special connection to the stars (sky), which gives him extra powers during certain celestial events.
In a Harry Potter fanfic, Sky Harry could have a backstory where he was raised by a family of wizards who were sky - watchers. They taught him all about the constellations and their magical significance. As he enters Hogwarts, he starts to notice that the sky patterns seem to be related to the school's secrets. He might find that certain constellations are actually maps to hidden passages in Hogwarts. Also, he could use his knowledge of the sky to predict when certain magical events will occur, like the appearance of a rare magical comet that brings with it a special kind of magic that only he can harness.
In some fanfictions, Merlin could be a smart character who has a connection with the magical creatures in the Forbidden Forest. Harry discovers this connection and with Merlin's help, they are able to communicate with the creatures. This alliance between Harry and the forest creatures, led by Merlin's intelligence, could be crucial in fighting against the Death Eaters. Merlin could also be the one who has the knowledge of a secret weapon hidden in Hogwarts that was created by the founders. Harry and his friends then search for this weapon with Merlin's guidance.
One possible storyline could be a magical crossover where Padme finds herself in the wizarding world of Harry Potter. Maybe she gets sorted into a Hogwarts house and has to learn magic while also using her skills from the Star Wars universe. Another idea is that Harry Potter discovers a way to travel to the Star Wars galaxy and teams up with Padme to fight against the dark side there.
A great storyline could involve the fem Harry Potter attending a grand ball in a Disney - like castle. There, she meets characters such as Belle from 'Beauty and the Beast'. They exchange stories about their different worlds. Maybe the fem Harry Potter shows Belle some of her magic, and in return, Belle teaches her about the power of love and kindness in a different way. It could also lead to an adventure where they have to rescue some of the Disney characters from a villain who has somehow acquired some dark magic from the wizarding world.
One idea could be to create a Marauder's Map - inspired invitation. Write the promposal message on a piece of parchment that looks like the map, with little footprints leading to the words asking the person to prom. Another could be to use a Sorting Hat. Get a fake Sorting Hat and have it 'Sort' the person into the 'Prom with Me' category.
One way is to base the name on a specific location in the wizarding world. For instance, if your story takes place a lot in Diagon Alley, you could name it 'Diagon Alley Adventures: A Harry Potter Fanfic'.
There could be a midnight story where Harry accidentally travels back in time during a midnight stroll in the castle. He ends up in the time of the founders of Hogwarts. He has to interact with them without changing the future too much. This gives him new insights into magic and how Hogwarts was built, which he can use to strengthen the defenses of Hogwarts in his own time.
Here's a cool idea for a Harry Potter fanfic. What if there was a parallel Hogwarts in another dimension? Harry and his friends accidentally stumble into this dimension while working on a new spell. In this parallel Hogwarts, the houses are different, and the magic is more wild and unpredictable. They have to find a way to get back home while also dealing with the challenges and mysteries of this new world. It could involve new magical creatures, different types of magic classes, and an entirely new set of characters that they have to interact with.
A possible storyline is that the wizarding world is trying to integrate more with the Muggle world after 19 years. There could be a plot where Harry and his friends are at the forefront of this movement. They might face opposition from some traditional wizarding families who are afraid of losing their pure - blood status or magical traditions. This could lead to all sorts of adventures and challenges for the characters as they try to bridge the gap between the two worlds.
One interesting storyline could be about Harry and Ginny raising their kids and dealing with the challenges of passing on the wizarding traditions while also protecting them from the dark forces that still lurk. Another might be about Ron and Hermione as parents, trying to balance their Ministry jobs with family life and teaching their children about the importance of friendship and loyalty, just as they learned in their own adventures at Hogwarts.
One interesting storyline could be about creating a new magical creature in the Harry Potter RPG fanfic world. The character might discover a hidden spell that combines the essence of different animals, leading to a whole new species. This could then cause a stir in the wizarding community, with some seeing it as a great discovery and others fearing the unknown implications.