Typically, in 'harlock x logan yaoi fanfiction', there is often a focus on the relationship between Harlock and Logan. It may explore their emotional connection, from initial attraction to deeper feelings. There could be elements of adventure or drama added to the mix, depending on the writer's creativity.
I'm sorry, I'm not aware of specific 'harlock x logan yaoi fanfiction' works. You could try searching on some popular fanfiction websites like Archive of Our Own (AO3). They have a large collection of fanfictions in various genres and pairings.
Aside from Yama and Harlock, there could be other characters like Kei Yuki. She might be involved in some fanfics, especially those that explore the more complex relationships within the crew. Also, the villains or antagonists in the Captain Harlock universe can be important characters in fanfics. They create the conflict that Yama and the rest of the crew have to overcome.
One interesting Captain Harlock Yama fanfic could be about Yama's origin story. Maybe it delves into his past before joining Harlock's crew, his family, and what led him to a life of space adventure. Another could be a story where Yama has to face a personal dilemma while on a crucial mission for Harlock, like choosing between loyalty to the crew and his own moral beliefs.
One idea could be a story where Logan helps Virgil and Roman understand each other better. Logan uses his logic to analyze their differences and find common ground for them. Maybe they are working on a project together in the mindscape and initially clash, but through Logan's mediation, they start to see the value in each other.
One idea could be a story where they all go on an adventure in a magical realm. Logan uses his logic to solve puzzles, Virgil helps them stay cautious, Patton spreads his kindness to make allies, and Roman is the brave leader. They face challenges together and in the process, their relationships grow deeper.
One idea could be a story where Logan, who is often seen as the antagonist in Fable 3, has a change of heart due to the influence of the princess. X could be a mysterious force or item that brings them together. For example, the princess discovers that Logan has been secretly trying to protect the kingdom from a greater threat that no one else is aware of, and X is the key to unlocking the truth about this threat.
I really like 'Logan's Unspoken Love'. In this fanfic, the author does an amazing job of showing Logan's tough exterior but soft heart when it comes to the reader. It's full of little details that make the relationship seem so real. 'The Journey with Logan' is also good. It follows the reader and Logan as they travel across the country, facing various obstacles along the way. And 'Logan's Promise' is a touching story where Logan makes a promise to the reader that he will always protect them.
One popular Harlock fanfiction could be the ones that explore his adventures in uncharted galaxies. For example, there are stories where he encounters new alien species and has to use his wits and the Arcadia's capabilities to overcome challenges.
The theme of self - discovery is also present. Through their interactions, both Logan and Harry often discover new aspects of themselves. For example, Harry might learn to be more assertive from Logan, and Logan might learn about the power of compassion from Harry.