A really cool fanfiction could involve Danny using his Ghostly Wail in a creative way to communicate with an ancient and powerful ghost. Since the wail is such a unique power, perhaps it can be used as a sort of frequency that only certain ghosts can understand, and through this, Danny uncovers a long - lost secret about his ghostly heritage.
One interesting Danny Phantom Ghostly Wail fanfiction could be about Danny exploring the full extent of his Ghostly Wail power in a new dimension. Maybe he discovers that in this dimension, the wail can not only repel ghosts but also heal certain spectral entities.
There might be a fanfiction where Danny's Ghostly Wail gets out of control during a battle. This causes all kinds of chaos as it starts affecting the physical world in unexpected ways, like shattering glass miles away and creating sonic shockwaves that disrupt electronics. And then he has to figure out how to regain control.
Another idea is a crossover with a superhero universe. Imagine Danny Phantom's Ghostly Wail being used in a fight against some supervillains. He could cross paths with a young superhero who is initially scared of Danny because of his ghostly appearance. But when they see how Danny uses his powers, especially the Ghostly Wail, for good, they team up. Danny could teach the superhero about the ghostly realm and how to deal with supernatural threats.
Jazz, Danny's sister, is also a common character. She might be the one who tries to understand Danny on a more emotional level when the power of the Ghostly Wail starts to take a toll on his mental state. For example, she could be the one to talk him down when he's frustrated about not being able to control it properly.
Focus on character development. For instance, if you're crossing over with a character from another series, show how Danny's Ghostly Wail affects that character's view of the supernatural. Maybe they were skeptical before, but after seeing the power of the Ghostly Wail, they start to believe. This can create an interesting dynamic between the characters.
One popular Danny Phantom Ghostly Lemon fanfiction could be 'The Haunted Encounter'. It has an interesting plot where Danny faces a new type of ghostly threat and his lemon - like powers play a crucial role in the story.
One common storyline is Danny's relationships with different ghostly female characters evolving in a romantic way. For example, he might have to balance his feelings for a powerful ghost princess and a mischievous ghost girl. Another could be the harem members teaming up to protect Danny from a greater threat, while also dealing with their own jealousy and competition within the harem.
One interesting story could be about Danny and Sam going on a ghost - hunting adventure together. They might discover a new type of ghost that has unique powers and they have to figure out how to defeat it using their combined skills.
Yes, there are some interesting ones out there. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'danny phantom ghostly harem' and you'll find a variety of stories with different takes on the concept.
One common theme is the supernatural aspect. Since it involves Danny Phantom and ghosts, there's often a lot of exploration of the otherworldly powers and how they interact with the harem dynamic. Another theme could be love triangles or more complex relationship webs within the harem.
One interesting Danny and Dani fanfiction could be about them teaming up to fight a new and powerful ghost. They use their combined powers and unique abilities to outwit the enemy. For example, Dani might use her speed while Danny uses his more powerful ghost ray.
Another type of interesting fanfiction in the Danny Phantom universe might be those that delve into his relationships. It could be his friendship with Sam and Tucker taken to new levels. Maybe they go on an adventure together that tests their friendship in ways not seen in the original series. For instance, they might have to make a difficult choice between saving Danny's secret identity or saving the town from a new ghost threat.