One common theme is loyalty. Despite their differences, Fry and Bender always seem to have each other's backs in fanfic. There's also the theme of self - discovery. Through their interactions, they both learn more about themselves. For example, Fry might learn to be more assertive and Bender might learn about the value of true friendship. And of course, humor is a big part of it too, just like in the original show.
A great one often has a well - developed character for the reader insert. It should make the reader feel like they are part of the Futurama universe. Also, accurate portrayal of Calculon's personality is key. His over - the - top acting and self - centered nature should be there, but also show his vulnerable side in a believable way.
One interesting crossover could be Naruto characters in the Futurama universe trying to use their ninja skills in a high - tech world. For example, Naruto running through the streets of New New York. Another could be the Planet Express crew getting involved in ninja - related adventures in the Hidden Leaf Village. It would be really cool to see Fry interact with Naruto and his friends, like sharing his stories from the 20th century while Naruto shows off his Rasengan.
Friendship is a very common theme. Their bond, which is unique considering Bender is a robot and Fry is a human from the past, is often explored. They support each other through various difficulties in the Planet Express deliveries.
Well, one interesting aspect could be the different power sets. Naruto's ninja abilities combined with the wacky technology of Futurama. And if we consider the addition of Leia, her leadership skills could add a new dynamic to the story.
Naruto might be curious about Futurama's technology and try to learn from it. Leia could befriend Naruto due to his strong sense of loyalty. And the Futurama characters would probably be quite confused by Naruto's ninja powers at first.
One common theme is Bender's struggle between his robotic nature and developing feelings for the reader. Another could be adventures that the reader and Bender go on together, like exploring strange new planets in the Futurama universe. And of course, there's often the theme of how an unlikely relationship between a human (the reader) and a robot (Bender) can work out in different and interesting ways.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfics, and you can use the search function to specifically look for Futurama Calculon x Reader fanfictions. Another option is FanFiction.net, which also has a decent number of works in this category.
Another option could be a group of rogue robots who have their own set of rules and don't like the idea of Bender and the Robot Devil being so prominent. They could band together to try and take over the areas that Bender and the Robot Devil operate in. They might be more brutal and less interested in the games and deals that the Robot Devil usually plays, making them a very different kind of antagonist compared to the Robot Devil.