Sure was. Batman Beyond was indeed a comic that explored the adventures of a new Batman in a dystopian future. It had unique storylines and art styles that attracted many fans.
A great one often has well - developed characters. It should capture the essence of Terry and Max as we know them from the show. Their personalities, strengths, and flaws should be accurately portrayed. For example, Terry's determination as Batman and Max's intelligence and tech - savvy nature.
You can start by looking on fanfiction platforms like Archive of Our Own (AO3). There are often a variety of Batman Beyond fanfictions featuring Terry and Max. Another option is FanFiction.net. Just use the search bar and type in 'Batman Beyond Terry x Max' and you'll get a list of relevant stories.
In terms of Batman's growth, in the harem fanfiction, his personal relationships force him to reevaluate his loner - hero approach. He starts to rely on the members of his harem for emotional support and different kinds of help. This is a big change from the original where he was more self - reliant and solitary in his crime - fighting journey.
Robin, in all his incarnations, is also a popular character in fanfiction related to Batman. He represents the sidekick aspect and the growth and development that comes with it. In Batman Beyond, Commissioner Barbara Gordon also features prominently in some fanfictions. Her connection to the original Batman era and her role in the new one can be explored in interesting ways.
One interesting concept could be exploring alternate universes where Batman has different powers or allies. For example, a fanfiction might imagine a world where Batman has the ability to control shadows like a metahuman. Another concept could be delving deeper into the relationship between the original Batman and the new Batman in Batman Beyond. It could show how the legacy and lessons are passed down, and how the new Batman copes with the huge shoes he has to fill.
A really cool 'Batman Beyond' fanfiction is 'Future of Gotham'. This one takes a look at the future of Gotham City itself, with Terry as Batman facing threats that could change the city forever. It has a unique take on the technology in the 'Batman Beyond' universe.
One of the best is 'Return of the Joker'. It delved deep into the complex relationship between Batman and the Joker, even in this futuristic setting. It was dark, full of twists, and really explored the legacy of the original Batman - Joker dynamic.