One of the most interesting plots could be Snape having to protect Harry in a very unexpected way. For example, in a fanfic where dark magic has been unleashed in a different form and it targets Harry specifically. Snape, despite his initial reluctance, realizes that Harry is the key to stopping it and has to put aside their differences. Another plot could involve Snape and Harry being transported to an alternate magical realm where they have to rely on each other to survive. They slowly start to understand each other's past traumas and develop a grudging respect. A third plot might be that Snape discovers a long - lost prophecy about Harry that changes his perception of him completely and he becomes his secret mentor in a much more involved way than in the original books.
Some fanfictions might have a plot where Snape and Harry are forced to work together on a dangerous potion - making project. Snape's expertise in potions and Harry's unique magical abilities combine in unexpected ways. Maybe there's a magical ingredient that only Harry can handle due to his connection with Voldemort. Another could be a time - travel plot where Harry goes back in time and has to interact with a younger Snape. This changes their relationship in the present as they both have new insights into each other. And then there's the plot where Snape and Harry are both caught in a spell that makes them experience each other's memories. This leads to a deep understanding and a new kind of relationship between them.
In some fanfictions, there could be a plot where Snape's Patronus, which is often related to Lily, has some kind of connection to Harry. For instance, the Patronus is able to communicate with Harry on a deeper level, guiding him in times of trouble. This could lead to Snape and Harry having to figure out the meaning behind this connection. Another plot might be that a powerful dark wizard tries to turn Harry against Snape by manipulating their shared history. But in the process, Snape and Harry end up uncovering a plot that is much larger and more dangerous. Also, a fanfic could have a plot where Snape discovers that Harry has a hidden magical ability that is related to Snape's own past, and they have to explore this connection together.
One plot could be that Snape, under some dark magic influence, forces Harry to accompany him on a dangerous mission to retrieve a lost magical artifact. Snape believes Harry has some hidden power that can help. Another could be Snape forcing Harry to study a very advanced and dangerous form of magic, thinking it will protect Harry in the long run. And there could also be a plot where Snape forces Harry to enter a magically sealed area to face some long - forgotten threat that only Harry can potentially defeat.
The plot where Murtagh teaches Harry some of his unique magic techniques is really cool. It shows how different magical systems can interact. For example, in a fanfic I read, Murtagh showed Harry how to use a spell that was common in his world but unheard of in Hogwarts.
In 'The Mysterious Bond between Harry and Grindelwald', the plot focuses on a strange, unspoken bond that seems to exist between the two. This bond affects their decisions and actions throughout the story. It's a unique take on their relationship and makes for a very engaging read.
Writers often explore their complex relationship by delving into their past traumas. Snape's unrequited love for Lily and his resentment towards James, which spills over to Harry, is a rich area to explore. They might show Snape being harsher on Harry in some fanfictions as a result of his own internal turmoil. Another way is by putting them in situations where they have to rely on each other. For example, in a battle against a new dark force, they are the only two with the right combination of skills and knowledge to defeat it. This forces them to set aside their differences.
Well, in some fanfics, like 'The Darker Side of Redemption', Lucius is given a chance at redemption after the fall of Voldemort. Harry plays a key role in this process, either by being a reluctant helper or an unexpected friend. The plot often involves exploring the darker parts of the wizarding world that were not fully shown in the original books.
In some fanfics, the plot might involve Harry using his snake form to spy on the Death Eaters. For example, he could slither into their secret meetings undetected. Another interesting plot could be that his snake form is somehow connected to Salazar Slytherin. Maybe he discovers that his ability to turn into a snake is part of an ancient bloodline magic.
Well, there's a plot where Penelope is secretly a powerful witch with ancient magic in her bloodline. In this fanfic, she has to hide her true power from everyone at Hogwarts. It makes for a really exciting read as she tries to balance her normal school life with the secrets she's keeping.
One possible plot could be that female Harry Potter is wrongly accused and sent to Azkaban. There, she discovers a hidden conspiracy within the prison walls. Maybe she finds out that some dark wizards are using Azkaban as a base to plan an attack on Hogwarts. Another plot might involve her using her unique magic skills, different from the male Harry Potter's in some ways, to survive the Dementors and break free, all while uncovering the truth about her false imprisonment.
One interesting plot could be Harry using his magical skills in veterinary work. For example, he might use spells to heal injured animals quickly. Maybe he'd have to deal with magical creatures that are acting strange and he has to figure out if it's a magical illness or something else.
Another interesting plot is when they both become involved in a secret society within the wizarding world that is trying to bridge the gap between wizards and Muggles. Draco brings his knowledge of the wizarding elite and Dudley his understanding of the Muggle world. Their partnership in this fanfic is full of twists and turns as they face opposition from both sides of the divide.