One interesting female Sheldon Cooper fanfiction could be about her being in a different scientific field than the male Sheldon. For example, she might be more into biological research rather than theoretical physics. She could have different social interactions, like having a group of girlfriends who are also scientists. Another could be a story where she meets the male Sheldon from an alternate universe and they have to collaborate on a project, which would be full of humorous misunderstandings and clashes of their similar yet different personalities.
Good Sheldon Cooper fanfiction usually stays true to his character. It should have his unique quirks like his OCD tendencies, his love for his spot on the couch, and his obsession with certain topics. For example, a story that shows Sheldon freaking out when someone sits in his spot is a classic. Also, it should have his distinct way of speaking, with his precise use of words and his nerdy references.
In fanfiction, fem Sheldon Cooper often retains her extreme intelligence. For example, she can still rattle off complex scientific facts. However, she may also show more emotional vulnerability compared to the male Sheldon. Maybe she'll cry when her experiments fail instead of just getting frustrated.
If Sheldon and Penny were in a fanfiction where Penny is pregnant, their friends in the group would also play important roles. Leonard might be jealous or concerned about how this will change the dynamic. Raj and Howard could offer their own brand of comical advice. The story could explore how the entire group adjusts to this new development, and how Sheldon and Penny's relationship evolves not just as a couple dealing with pregnancy, but also within the context of their friendship circle.
You can start by looking on fanfiction websites like Archive of Our Own or FanFiction.net. Use the search bar and type in 'female Sheldon Cooper'. You'll get a list of stories related to it. Another way is to join fan groups on social media platforms dedicated to The Big Bang Theory. People in those groups often share and recommend good fanfiction.
One common theme is friendship development. Fanfictions often focus on how their relationship grows from being just neighbors to really good friends who understand each other's quirks.
In this fanfiction scenario, Sheldon might start researching everything about pregnancy and child - rearing from a scientific point of view. He could make elaborate plans and charts, while Penny is just trying to come to terms with the physical and emotional changes. Their different approaches could lead to some really funny and also some very touching moments as they learn to support each other.
Sheldon Cooper does have roots in real - life scenarios. The idea of a brilliant mind being out of touch with normal social norms is not uncommon in real life. For example, some scientists are so focused on their research that they might seem odd in social situations, just like Sheldon. But the character of Sheldon is a composite of many ideas and has been developed to be a lovable and hilarious character on the show. His backstory, his relationships with his friends and family, are all fictional elements built around this basic concept of a super - intelligent but socially inept person.