You can try fanfiction websites like Archive of Our Own (AO3). There are often a lot of works related to various fandoms, including ones featuring Arturia and Fem Gilgamesh. Just use the search function on the site and type in their names.
One common theme is the power struggle. Given that both characters are strong in their own right, fanfictions often explore how they interact when their powers clash or when they have to cooperate in a situation. For example, they might be forced to work together against a common enemy.
One great fanfiction could be 'The Meeting of Two Titans'. In this, Fem Shirou and Gilgamesh might have a series of intense battles and philosophical debates. Their clashing personalities, with Fem Shirou's tenacity and Gilgamesh's pride, create a really engaging dynamic. Another one could be 'Unlikely Allies' where they are forced to team up against a common enemy. This shows a different side of their relationship as they learn to rely on each other's strengths. And there's also 'A New Path' which explores how their relationship could develop in a different universe, with Fem Shirou trying to understand Gilgamesh's complex motives.
Well, Tumblr is also a great place to search for Fem Shirou and Female Arturia fanfiction. A lot of fans post snippets or links to their stories there. You might have to dig a bit through the tags, but it's worth it. Additionally, some dedicated Fate series fan communities may have their own collections of fanfics that include these characters in their female forms.
One popular gilgamesh x arturia fanfiction is 'The Convergence of Kings'. It beautifully weaves their different personalities and backstories together. The story often delves into their complex relationship, with Gilgamesh's haughty yet noble nature clashing and then gradually finding common ground with Arturia's chivalrous and determined self.
The theme of fate also often appears. Given their roles in the Fate universe, fanfictions may explore how their fates are intertwined. Whether it's a pre - determined meeting or a struggle against the strings of fate that bind them, this theme adds an extra layer of depth to their relationship in the stories.
You can try looking on fanfiction platforms like Archive of Our Own (AO3). It has a large collection of various fanfictions, and you might be able to find some great Fem Gilgamesh x Shiro fanfictions there. Just use the search function and type in the relevant tags.
There's a fanfiction called 'Arturia and Gilgamesh: A New Bond'. In this one, Gilgamesh discovers a side of Arturia he had never seen before during a time - traveling adventure. It's interesting as it shows how their personalities clash and yet find harmony in unexpected ways. The author does a great job of portraying their character traits accurately from the original 'Fate' series.
There are some smaller, more niche fanfic aggregator sites that might have what you're looking for. These sites often focus on specific fandoms or pairings. However, be cautious when using these less - known sites as they may not have the same level of quality control as the bigger ones. Additionally, you can follow some Fate - related hashtags on Twitter. Fans sometimes tweet about their fanfictions or share links to them.
Another idea for fem Shirou and Arturia fanfiction is to set it in an alternate universe where magic is commonplace. They could be part of a magical guild or organization. Their adventures together would not only focus on their relationship but also on their growth as magic - users. This would allow for a lot of world - building and exploration of new magical concepts while still maintaining the core of their relationship.
The relationship between Arturia and Gilgamesh in the manga is quite ambiguous. They have moments of confrontation, but also instances where their interactions suggest a deeper connection beneath the surface. It depends on the specific plot and context.