One idea could be exploring how her half - Asari heritage affects her biotic abilities. Maybe she has a unique way of using biotics that combines both human and Asari techniques. For example, she could be able to create biotic shields with a different appearance or strength compared to a full - human or full - Asari. This could lead to interesting scenarios in combat where she surprises her enemies with her unorthodox biotic skills.
Her cultural identity could be a major aspect. She has a foot in both the human and Asari cultures. Fanfiction could explore how she celebrates both cultures. Maybe she has a special way of combining human holidays with Asari traditions. Or she could be in a position where she tries to introduce Asari concepts, like their more communal living style, to humans while also trying to make Asari understand human individuality.
One interesting aspect could be the exploration of unique cultural blends. Since Shepard is part Asari, there might be a combination of human and Asari values, traditions, and ways of thinking. For example, the Asari are known for their long lifespans and strong biotic abilities. In the fanfiction, Fem Shepard might have a different perspective on life and combat due to her Asari heritage.
Sadly, I don't have a particular list of 'fem shepard is half asari fanfiction' to recommend. However, you could try joining fan communities dedicated to the game or the character. There, fellow fans might be able to point you towards some great fanfictions with this concept.
There might be a villain who is either a human supremacist trying to eliminate her because of her alien blood, or an alien warlord who wants to use her for his own gain. This villain would constantly be a threat to her and her friends, creating a lot of conflict and drama in the story.
One common theme is the exploration of an inter - species relationship. Since Shepard is human (usually) and the Asari is, well, an Asari, there are a lot of cultural and biological differences to be explored. For example, the Asari's long lifespan compared to Shepard's can create interesting dynamics in the relationship.
You could check out 'Asari's Journey with Shepard'. This fanfiction focuses on the adventures that an oc Asari and Shepard embark on together. It has really interesting character development for both of them, especially how the Asari's unique abilities play a role in their shared experiences.
In this fanfiction scenario, Female Shepard and Mako are driving towards an ancient alien ruin. Along the way, they have conversations about the purpose of their mission and what they hope to find. The drive is filled with anticipation. Once they reach the ruin, Shepard discovers a strange energy source that she believes could be a key to understanding a long - lost alien civilization. Mako provides support as Shepard investigates further.
I'm sorry, but I can't recommend specific fanfiction of this nature as it may involve inappropriate or non - compliant content. However, you can try searching on popular fanfiction platforms like Archive of Our Own and use their filtering options to find appropriate stories about Male Shepard and Asari.
One interesting concept could be the unique abilities the hybrid might possess. Since Asari have strong biotic powers in many fictional universes, a human - Asari hybrid might have a blend of human tenacity and Asari biotics, leading to new and exciting ways of using powers.
Perhaps there's a plotline where her half - alien nature makes her the key to a major intergalactic conflict. She could have knowledge or abilities that both sides are vying for. For example, she might be able to communicate with an ancient alien race that holds the secrets to a powerful energy source. This would put her in a dangerous position as she tries to navigate between the different factions without getting caught or killed.