There are fanfictions where Hermione travels to a time when Severus is a young student and she becomes his mentor of sorts. She teaches him things that he would have never learned otherwise, like advanced Muggle - friendly magic. This creates a unique bond between them that defies the normal timelines and relationships in the Harry Potter universe.
In some Albus Severus time travel fanfiction, the plot involves him going back to the time of the founders of Hogwarts. This is fascinating because he gets to interact with the likes of Godric Gryffindor and Salazar Slytherin. He might have to choose sides in an old conflict or even try to prevent the split between the houses. It's a really cool concept that explores the roots of Hogwarts and the wizarding world. Also, there are plots where he travels to a time when dark magic was on the rise and he has to fight against it using his knowledge from the future.
There are also fanfictions where Snape time travels and gets involved in the founding of Hogwarts era. This is a very creative plot as it combines Snape's character with the ancient history of the wizarding world. He might use his modern - day knowledge to influence the founding principles of Hogwarts or have interactions with the founders themselves, which completely changes the course of wizarding history.
A really intriguing plot is when Hermione time - travels to save Bellatrix from becoming evil. It challenges the whole idea of good and evil in the wizarding world. Another is when Bellatrix travels forward in time and meets Hermione in a modern - day Hogwarts. It's interesting to see how Bellatrix reacts to the changes in the wizarding world.
Well, one intriguing plot is when Hermione goes back in time to stop Tom Riddle from making Horcruxes. It adds a whole new layer of drama as she has to figure out how to do it without disrupting the timeline too much. Another plot is when she travels back and tries to befriend Tom as a child, thinking she can change his future that way. In some fanfictions, the plot of Hermione getting trapped in the past while dealing with Tom Riddle's rise to power is also very interesting.
One possible plot could be Hermione using her knowledge to help the Marauders in some way. For example, she might assist them in dealing with a difficult spell or situation that they were struggling with in their original time. Another plot could be her trying to change certain events that she knows will have negative consequences in the future, but then facing the moral dilemma of interfering with time.
One possible interesting plot could be Sakura time - traveling to a point where Kakashi is a young ninja still struggling with his past. She could use her modern - day knowledge and medical skills to help him in ways that change the course of his life. For example, she might be able to prevent some of the traumas he endured. Another plot could involve Sakura traveling to a future where Kakashi has become a Hokage, and she has to adapt to this new world while also dealing with her relationship with an older, more experienced Kakashi. A third plot could be Sakura getting stuck in a time loop that always brings her back to a crucial moment in Kakashi's life, and she has to figure out how to break the loop while also making sure Kakashi's future is secure.
Well, in some older Harry Potter time travel fanfiction, the plot might involve Harry traveling back to his own past to fix his mistakes. He might have regrets about how he treated certain people or how he made certain decisions. So, he goes back to make amends. This can lead to some really heartwarming and also tense moments as he tries to change things without causing more harm. For instance, he might go back to when he first met Hermione and be nicer to her from the start. This can then change their relationship in unexpected ways throughout the story.
One interesting plot could be that when they time travel, they end up in a time before the Uchiha massacre. Itachi could then try to change things with Naruto's help, and in the process, their relationship deepens in a yaoi way. Maybe Naruto helps Itachi see a different path for the Uchiha, and they grow closer as they face the challenges together.
In some fanfictions, Naruto time - travels and ends up being adopted by the Uchiha family. This gives him a whole new perspective on the Uchiha's situation. He then uses his position to try and prevent the misunderstandings that lead to their destruction. There are also fanfictions where Naruto travels back to meet Madara Uchiha as a young man. He tries to change Madara's view of the world and stop him from starting the cycle of hatred that plagues the ninja world.
In some fanfics, a plot twist could be that Severus was actually protecting Hermione all along under Dumbledore's secret orders, and Sirius discovers this and has to re - evaluate his hatred for Severus. This completely changes the dynamic between the three.