A fanfic could explore a scenario where Harley Quinn, in her attempts to reform, crosses paths with Bruce Wayne. He initially distrusts her, but as they interact more, they start to understand each other on a deeper level. For example, Harley could be helping at a local shelter that Wayne also supports, and they gradually build a connection.
Another possibility is a time - travel fanfic. Harley Quinn somehow gets sent back in time and meets a younger Bruce Wayne. This throws both of their worlds into disarray as they have to figure out how to get her back to her own time while also dealing with the unexpected attraction that develops between them.
A great plot twist could be that Harley Quinn is actually undercover to protect Bruce Wayne from a secret threat that he doesn't even know exists. All her crazy antics are just a cover to keep the real enemy at bay.
In many fanfics, Harley Quinn realizing Bruce is Batman can lead to some really interesting plot developments. Maybe she discovers it by accident, like seeing Bruce act in a way that's too similar to Batman's mannerisms. It could also be that she pieces it together from some clues that others have overlooked. This realization might make her re - evaluate her relationship with both Bruce and Batman, and it could create a whole new dynamic in the story.
Another fanfic could be set in an alternate universe where Gotham and New York City are in some sort of alliance. Bruce Wayne and Tony Stark are forced to work together to fight a common enemy that is using both cities' resources for evil. Their different fighting styles and personalities clash at first, but over time they develop a deep respect for each other and become friends.
A great idea for a Bruce Wayne training fanfic could be his training in stealth. He would practice moving silently through the shadows of Gotham. This could include training in different terrains, like the rooftops or the sewers.
One idea could be a story where Bruce Wayne discovers the reader is pregnant. He might initially be shocked but then quickly becomes protective. He starts making arrangements to keep the reader safe, like beefing up security at their home and ensuring she has the best medical care.
In Harley Quinn x Joker fanfic, the character development is often a focus. Harley's transformation from a psychiatrist to a criminal sidekick is interesting. Writers may play with different timelines and scenarios in the fanfic. For example, they might explore what would happen if Harley finally broke free from the Joker's influence earlier than in the original story. This can lead to various plot twists and new character arcs for both Harley and the Joker.
One possible plotline could be that Bruce Wayne finds himself in a situation where he has to interact with Ivy, Harley and Lemon more often. Maybe they all end up working together on some big project to save Gotham, and during that time, romantic feelings start to develop between them all in a harem - like dynamic.
One possible title could be 'The Adventures of Harley Quinn and Her Fem OC Ally'.
One great 'Deadpool x Harley Quinn fanfic' is 'The Unlikely Duo'. It has a really interesting plot where they team up to take on a common enemy in a very chaotic and humorous way.
Well, 'Harley Quinn's New Companion' is a fanfic that stands out. In this story, the reader gets involved in Harley's adventures in a really immersive way. The author does a great job of showing Harley's complex emotions towards the reader. There's also 'Harley and the Reader: Unlikely Allies' which shows how the two characters, who seem so different at first, end up relying on each other.