Yes, there are some. You can check out fanfiction websites like Archive of Our Own. Just search for 'human dalek' and you might find various stories with different themes and plotlines.
In 'human dalek fanfiction', a recurring theme is the clash of cultures. The human values of compassion, love, and freedom versus the Dalek's values of conquest and extermination. Also, the theme of survival in a world where the Daleks are a threat is quite common. The human - Dalek character may be trying to survive in a hostile Dalek - dominated environment while holding on to their human side.
One interesting idea could be a Dalek that has a malfunction and starts to develop human - like emotions. It might struggle between its programmed Dalek nature and these new emotions when interacting with humans.
Some fanfiction explores coexistence by having a human character try to rehabilitate a Dalek. The human believes that the Dalek can be changed and tries to teach it about concepts like friendship and peace. This is a really unique take on how two such different beings could coexist. It often involves a lot of internal struggle for the Dalek as it battles against its ingrained programming.
Well, it varies. In some stories, the Daleks' sheer power and ruthlessness give them the edge. But in others, human ingenuity, courage, and unexpected alliances can tip the scales in their favor.
One interesting Dalek fanfiction could be about a Dalek that somehow gains emotions and struggles with its newfound feelings while still being part of the Dalek collective. It makes for a great exploration of the nature of the Daleks.
One major theme is the power struggle. The OC, usually being much less powerful than the Daleks, has to find ways to either avoid or overcome their power. Friendship is also a theme that pops up. In some fanfictions, an unlikely friendship forms between the OC and a Dalek or a group of Daleks. And of course, there's the theme of exploration. The OC gets to explore the Doctor Who universe while dealing with the Daleks.
A female character could be developed as a Dalek sympathizer. This would be an interesting twist. She might believe that the Daleks are not entirely evil and that there is a way to rehabilitate them. She could work towards that goal in the fanfiction, facing opposition from other characters who see the Daleks as pure evil.
There might be a fanfiction where a female scientist in the Doctor Who universe is studying a captured Dalek. She begins to communicate with it in a unique way, and through their exchanges, she uncovers secrets about Dalek technology and their society. This could involve her trying to find a way to use the Dalek's knowledge for good, while also facing the danger of the Dalek's aggressive tendencies.