One popular trope is the 'Changing the Future' trope. In many of these fanfictions, fem Harry travels back in time with the hope of changing Tom's path, so he doesn't become Voldemort. It adds a lot of drama and moral dilemmas as she tries to interfere without causing more chaos.
Another is the 'Discovering Hidden Secrets' trope. When fem Harry travels back, she discovers secrets about Tom's past, Hogwarts, or the wizarding world in general that were lost over time. This trope keeps the readers hooked as they learn new things along with fem Harry.
The 'Romantic Redemption' trope is also common. Here, through their time - traveling encounters, fem Harry and Tom develop a relationship that might lead to Tom's redemption. It's often a slow - burn romance with a lot of obstacles, like their different outlooks on magic and power.
One popular trope is the 'Changing the Future' trope. In many of these fanfictions, fem Harry travels back in time with the intention of stopping Tom Riddle from becoming Voldemort. This trope allows for a lot of exploration of the 'what - ifs' in the Harry Potter universe.
One popular theme is redemption. For example, Tom might be given a chance to change his ways through time travel. Another theme is exploring the past secrets of Hogwarts. Since they can travel back in time, they can uncover things that were lost in history.
There's also 'Back Through Time with Fem Harry and Tom'. This fic delves deep into how fem Harry's presence in the past changes things for Tom. It shows a different side of Tom, not just the dark lord he becomes. The story has a lot of emotional depth as fem Harry tries to understand and maybe even prevent Tom's fall into darkness. It's a long and engaging read.
A common trope is the 'romantic entanglement' trope. Writers often pair the fem Harry Potter with various characters from Game of Thrones. It could be with Jon Snow, creating a story of two outcasts coming together. Or she might be paired with Tyrion Lannister, leading to an interesting dynamic of a powerful magical being and a clever, but often underestimated, man. There's also the 'mentor - mentee' trope where she either mentors someone in Westeros about magic or is mentored by someone about the ways of Westeros.
The 'unlikely allies' trope is often used. Given their very different backgrounds, fem Harry Potter and Bruce Banner make for an unlikely pair. But in fanfiction, they often end up working together towards a common goal. There's also the 'culture clash' trope as the magical and scientific cultures they come from are so different. This leads to some really interesting interactions and storylines.
In fem Harry Potter and Sailor Moon fanfiction, a common trope is the friendship - building aspect. The characters from both series have to learn to trust and work together. This often involves some initial misunderstandings and then a deepening of their relationships. Also, the 'hidden identity' trope is quite popular. Maybe fem Harry has to keep her wizarding identity a secret in the Sailor Moon world or vice versa.
One popular trope is changing the past. For example, Team 7 might go back in time to prevent a tragedy that happened in their original timeline. Another is the fish - out - of - water scenario. Since they are in a different time, they have to adapt to different ways of life, like Naruto being shocked at the lack of instant ramen in the past.
One popular trope is the 'fish out of water' scenario. A character from a modern time or a different era in the Castlevania universe finds themselves in a time period where they don't belong. They have to adapt to the new customs, technology (or lack thereof), and threats. Another is the 'destiny alteration' trope. The time traveler tries to change something in the past, whether it's to prevent a great tragedy or to change the fate of a character. And the 'lost knowledge' trope is also common. A character discovers forgotten knowledge or magic in a different time period that can be used to their advantage or to solve a mystery in their own time.
One popular trope is 'Changing the Past'. In these fanfictions, Noctis travels back in time with the goal of altering some event that had a negative impact on his present. For example, he might try to save a loved one who died in the original timeline.
One common trope is the 'fish - out - of - water' situation. When the Batfamily travels to a different time, they often struggle to adapt to the new era's technology, social norms, and culture. For example, in some fics, they go back to a time before smartphones and have to figure out how to communicate and gather information without modern tech. Another popular trope is 'fixing the past'. They might go back to prevent a tragedy or change an event that had a negative impact on the Batfamily in the present.