The relationship dynamics between Mycroft, John, and Sherlock are crucial. It could be exploring their brotherly bond in new ways for Mycroft and Sherlock, and the unique friendship between John and Sherlock. Also, good grammar and an engaging writing style matter. If the story can make you feel the emotions of the characters, like when John is exasperated with Sherlock's antics or Mycroft's subtle manipulation, it's likely a great fan fiction.
You can start by looking on fanfiction.net. It has a large collection of fan fictions related to Mycroft, John, and Sherlock. Just search for the relevant tags.
One great 'Mycroft and Sherlock fanfiction' is 'The Sibling Rivalry'. It delves deep into their complex relationship, showing their brotherly banter and underlying love for each other. Another good one is 'Mycroft's Influence' which explores how Mycroft's actions impact Sherlock's detective work. There's also 'Sherlock and Mycroft: Unseen Moments' that offers some really interesting and heart - warming moments between the two.
In many Sherlock fan fictions, Sherlock branding John could be a sign of his trust or a way to get a reaction out of him. It all depends on the author's imagination and the context they create.
One common theme is their interaction within the complex world of Sherlock Holmes. They might be shown collaborating on a case that Sherlock is also involved in, or dealing with the consequences of Sherlock's actions. Another theme could be their own personal relationship, perhaps exploring how they view each other outside of their connection to Sherlock.
One interesting aspect of fanfiction involving Mycroft and Sherlock as siblings is the exploration of their childhood. Writers often create backstories that show a more complex relationship than what's shown in the original works. For example, they might delve into how their different personalities developed over time. Mycroft's more reserved and calculating nature could be contrasted with Sherlock's impulsive and brilliant mind. Fanfiction can also introduce new characters that interact with the Holmes brothers, adding new layers to their family dynamic.
Good places to find John Watson Mycroft fan fiction include Tumblr. There are many fan fiction writers who post their works or snippets on Tumblr. You can also check out Reddit's relevant fan fiction communities. Users often share and recommend their favorite fan fictions about these two characters there.
Many fanfictions explore the idea of a rift between Mycroft and Sherlock. It could be due to differences in their career choices or their methods of solving problems. However, in these stories, there's often a moment of reconciliation. This might happen when they both realize that they are more alike than they thought and that they need each other to face a common enemy or solve a difficult case.
Well, for Sherlock and Mycroft's little sister fanfiction, I'd start by looking at specific Sherlock Holmes fan communities. Some Reddit groups dedicated to Sherlock Holmes might have threads about it. They often discuss and share fanfiction they like. Also, if you follow some Sherlock fan accounts on Twitter, they might retweet or recommend good fanfics involving this interesting concept of the little sister.