One common theme is the exploration of different demon cultures. Since Sesshomaru is a powerful demon and the reader is a dog demon, their different backgrounds often play a big role. For example, how their clans' traditions might clash or complement each other.
One popular fanfiction in this category might be 'Sesshomaru's Canine Companion' which delves into a story where the dog demon reader has an unexpected encounter with Sesshomaru and they embark on a journey together. The story is filled with adventure and the slow - building of a unique relationship between them.
For a Sesshomaru and OC fanfiction to be the best, the relationship development between them is key. It should be a gradual and believable process. Maybe they start as enemies, and through a series of events, they come to understand and respect each other. The plot also needs to be engaging. It could involve a quest that they embark on together, or a mystery that they solve. Good writing, with vivid descriptions of the Inuyasha universe and its characters, also adds to the quality.
One great place to find Sesshomaru and OC fanfiction is Archive of Our Own (AO3). It has a large collection of fanfics, and you can filter by tags related to Sesshomaru and original characters. Another option is FanFiction.net. Just search for 'Sesshomaru and OC' in the search bar, and you'll get a list of relevant stories. Some Tumblr blogs also share and recommend such fanfictions.
One popular 'kagome is a dragon demon sesshomaru fanfiction' is 'Dragon's Bond'. It explores an interesting relationship between Kagome and Sesshomaru where Kagome has dragon - like powers. The story has a great plot that combines adventure and a touch of romance.
One common theme is the struggle of an ordinary oc becoming worthy of a powerful being like Sesshomaru. It often involves the oc having to prove themselves, either through strength or some other special quality.
A common element is the exploration of Sesshomaru's character in a new light. Since he is often seen as a stoic character in the original, in yaoi fanfiction with an OC, his softer and more emotional sides might be revealed. For example, his vulnerability in the face of his feelings for the OC.
One great 'Inuyasha Sesshomaru x OC Fanfiction' is 'A Bond Beyond Time'. It has a really interesting plot where the OC is a time - traveler who gets entangled with Sesshomaru's quest. The way the author develops their relationship is quite engaging.
I really liked 'The Moonlit Mate'. In this fanfiction, the OC is a powerful healer who catches Sesshomaru's attention. The story is filled with adventure as they face various challenges together. It also delves deep into Sesshomaru's character, showing how he gradually opens up to the OC. And there's 'Destined Encounter' where the OC has a mysterious past which ties in with Sesshomaru's own journey. The writing is engaging and the relationship between the two characters feels very natural.
The world - building around them. If the fanfiction expands on the Inuyasha universe, adding new locations or lore related to Sesshomaru's world, it enhances the overall experience. For example, if the OC comes from a hidden village with its own set of rules and magic, and this village becomes part of the story's plot as Sesshomaru and the OC's relationship evolves, it makes the story more complex and interesting.