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.
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 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.
Well, for Dalek crossover fanfiction, a great one could be a crossover with the Marvel universe. The Daleks could target Earth because of the presence of powerful superheroes. They might see them as a threat to their plans of universal domination. Also, a crossover with the Lord of the Rings universe could be fascinating. The Daleks in Middle - earth would be a terrifying sight, perhaps trying to exterminate the races there to claim the land for themselves. And a Dalek crossover with the Matrix world, where they could try to take over the digital realm and use it for their own purposes.
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.
The Daleks were created by Davros, a Kaled scientist. The Kaled race was in a war, and Davros, seeing his people's flaws, decided to genetically engineer a new form of life. He created the Daleks, which were encased in a metal shell for protection and had a single 'eye' stalk. They were designed to be pure hate and aggression, with a goal of total extermination of all other life forms they deemed inferior.
Well, perhaps the Daleks are interested in the chakra system in the Naruto universe. So they start experimenting on ninjas to understand it better. Naruto discovers this and teams up with some of the smartest ninjas, like Shikamaru, to outwit the Daleks. They could set traps using their knowledge of the terrain and ninjutsu.
To start writing Dalek crossover fanfiction, begin by choosing the other universe you want to cross with carefully. If it's a less - known universe, do your research. After that, consider the characters from both sides. How would they interact? For instance, if it's a crossover with the Discworld, how would Rincewind react to the Daleks? Then, create a plot. You could start with a small event that leads to a bigger conflict. Say, a single Dalek crashes on Discworld and starts causing chaos, which then attracts more Daleks. And don't forget to give your story a unique twist. Maybe the magic on Discworld has an unexpected effect on the Daleks.
Sure. One great piece of Dalek and OC fanfiction is 'The Dalek's Unlikely Ally'. It tells the story of an original character who gets thrown into the Doctor Who universe and has to deal with the Daleks. Another is 'Dalek Encounter', where an OC tries to outwit the Daleks using their own technology against them.