Well, I'm not sure about a specific 'Arthur Harry Merlin' yaoi fanfiction that stands out above all others. But you can start by looking on fanfiction platforms like Archive of Our Own. Just type in the relevant tags 'Arthur', 'Harry', 'Merlin' and 'Yaoi' and you'll likely find a whole bunch of stories. Some might focus more on the emotional connection between Arthur and Merlin with Harry as an interesting addition to the dynamic, while others might have different takes on how their relationships develop in a yaoi context.
There's a yaoi fanfiction called 'Unlikely Alliances' that features Arthur, Harry, and Merlin. In this story, the author takes a unique approach to the yaoi aspect. Instead of a typical love triangle, it presents a more complex web of relationships. The story is set in a world where magic is both a powerful force and a source of conflict. Arthur's leadership, Merlin's magic, and Harry's outsider perspective (coming from a different magical world perhaps) all play important roles in how their relationships unfold in a yaoi - centered plot.
One common theme is the exploration of forbidden love. Since Arthur, Harry, and Merlin come from different backgrounds or even different fictional universes in some crossovers, their love is often seen as something that goes against the norm. Another theme is the power of magic in relation to their relationships. Magic can either bring them together or create obstacles. For example, Merlin's magic might be a secret that affects how he can be with Arthur or Harry in a yaoi relationship.
There are several platforms where you can find such fanfiction. Archive of Our Own (AO3) is a great place to start. Just type in relevant tags like 'Harry as Merlin' and 'Draco as Arthur' in the search bar, and it should bring up a list of stories that match this concept.
There's 'Merlin's Hidden Magic in Camelot'. In this fanfic, it delves into how Merlin's magic is a key factor in his relationship with Arthur. It shows how Merlin uses his magic to protect Arthur in ways that Arthur doesn't even realize at first, and how their friendship grows stronger because of it. The story has some really interesting plot twists that keep you hooked.
One popular 'Merlin Arthur mpreg fanfiction' is 'The King's New Beginning'. It explores the unique situation of Arthur being pregnant in a very imaginative way. The story delves into how the court and Merlin deal with this unexpected turn of events. It has some really interesting character developments and a great plot that keeps you hooked from start to finish.
A popular one is 'Merlin's Brotherly Love for Arthur'. This story explores Merlin's perspective of being Arthur's brother. It shows how Merlin uses his magic not just to protect Camelot but also to look out for his brother in a more personal and emotional way. There are some really heart - warming scenes that highlight their special connection.
One great 'Merlin and Arthur together fanfiction' is 'The Bond Beyond Magic'. It delves deep into their relationship, showing how they rely on each other not just in the face of magical threats but also in the political intrigues of Camelot. The author does a wonderful job of portraying their friendship evolving into something more profound.
One popular Arthur Merlin hotel fanfiction is 'A Night at the Royal Inn'. It has a great plot where Arthur and Merlin end up at a mysterious hotel during their quest. There are some really interesting character interactions and a touch of magic.
One great piece of Merlin and Arthur slash fanfiction is 'The Bond Between Them'. It beautifully explores their relationship in a more romantic light. The story delves deep into their shared adventures and how their feelings for each other gradually develop. It has some really well - written emotional scenes that fans of this pairing will surely love.
Another fanfic to check out is 'Protector of the Warlock'. Here, Arthur is extremely protective of Merlin, especially when Merlin's magic is discovered by some of the more hostile elements in Camelot. Arthur goes to great lengths to keep Merlin out of harm's way, and it beautifully portrays their friendship and the lengths Arthur will go to for Merlin.
There's also 'The Hidden Love'. This fanfic shows how their love might have developed in secret, with lots of tender moments. It adds new elements to the Arthurian legend while staying true to the characters. It's a great read for those who like a slow - burn romance.