Conan and Ran love fanfiction: What are some popular storylines?

I'm not sure specifically about 'Conan and AI love' fanfictions as it's not a very common mainstream combination. But you could start by looking on major fanfiction websites like Archive of Our Own or FanFiction.net. Maybe search for stories where Conan (assuming you mean Conan from Conan the Barbarian or Detective Conan) has an interesting relationship with an AI character created in the story's universe.

One common storyline could be the characters facing challenges to their love while trying to uphold their honor. For example, a knight in love with a lady from an enemy kingdom. He has to balance his love for her and his loyalty to his own kingdom. Another could be a character having to prove their honor to be worthy of their love interest's affection.

A third popular storyline might be an OC who is a super - agent from a different agency falling for Captain America. They are initially at odds due to different methods of operation but as they work together on a mission to save the world from a new threat, they realize their love for each other.

One popular storyline is the 'opposites attract' scenario. Austin, the confident and outgoing musician, and Ally, the shy and talented songwriter, might start off as friends or reluctant partners but gradually fall in love. For example, they could be forced to work together on a big music project, and through the process, their feelings for each other grow.

One possible storyline could be that Conan discovers AI Lemon has some unique detective abilities due to its advanced algorithms. They team up to solve a mystery that has stumped the police. Conan uses his human intuition and deductive skills while AI Lemon provides data analysis and access to a vast amount of information.

One popular storyline could be Koga and Kagome teaming up to face a new and powerful demon threat that neither could handle alone. This would test their relationship and force them to rely on each other.

Romance is a big theme as well. Writers explore the relationship between Conan and Ran in different ways, from the angst of Conan hiding his true identity while still having feelings for Ran, to more fluffy and sweet relationship developments.

The popularity of Detective Conan x Ran fanfictions lies in the strong existing relationship between the two characters in the original series. Fans are always curious about how their relationship could develop further, like if Ran will finally figure out Conan's true identity. Also, the mystery and adventure elements in the original show can be carried over into the fanfictions in unique ways.

I think mystery is a very common theme. Since Conan is a detective - themed anime, in Conan Dan Ran fanfics, the mystery element can be enhanced. Writers can create complex cases for Conan, Dan, and Ran to solve together. Love is also a major theme. Fans might explore the romantic relationships between the characters in different ways. It could be about unrequited love or the development of a new relationship. And the theme of growth is possible too. The characters can grow in terms of their skills, understanding of the world, and emotional maturity as the fanfic progresses.

The popularity of Conan and Haibara love fanfiction lies in the fact that their relationship in the original series has a lot of potential for further exploration. Fans are curious to see how their relationship could develop romantically.