The 'found family' trope is also common. Characters from both shows, who are often loners in their own right, coming together and forming a new family unit. It gives a sense of warmth and community in the fanfics.
One popular trope is the 'enemies to lovers' especially when it comes to characters from Good Omens and Supernatural universes meeting. For example, an angel from Good Omens and a hunter from Supernatural might start off at odds but gradually fall in love.
One popular trope is the crossover itself. Combining the worlds of Supernatural and Good Omens creates interesting scenarios. Another is the 'enemies to lovers' trope, especially when characters from the two different shows interact in unexpected ways.
One popular trope is the 'enemies to lovers' scenario. In 'good omens', the characters often have complex relationships, and in fanfics, it can be interesting to see how the reader character goes from being at odds with a character from the show to falling in love. For example, maybe the reader starts off not trusting Crowley, but as the story progresses, they see his good side and develop feelings.
Some popular tropes in Supernatural future fanfiction include the discovery of new dimensions. This can open up whole new worlds for the characters to explore and new threats to face. There's also the trope of a new generation of hunters emerging. These young hunters look up to Sam and Dean and try to follow in their footsteps. And a big one is the return of characters who were thought to be dead. It adds an element of surprise and nostalgia to the story.
A common trope is the mystery surrounding the incubus. In fanfiction, the incubus is often presented as an enigma, with its true motives and nature hidden. This keeps the reader guessing. Also, the idea of the incubus as a protector is popular. Despite their usually negative reputation, in some fanfictions, the incubus protects the human from other supernatural threats. Finally, the transformation trope can be seen, where the human character may start to take on some supernatural traits due to their association with the incubus.
The 'alternate universe' trope is quite common too. For example, there are fics where Dean and Castiel are in a modern - day high school setting instead of the supernatural world they're usually in. It gives a fresh take on their characters and relationship.
The 'enemies to lovers' trope can also be found in Supernatural Jensen and Jared fanfiction. It might start with some kind of misunderstanding or conflict between their characters, but as the story progresses, they develop feelings for each other. There's also the 'roommate' trope, where they live together and all kinds of comical and heartwarming situations unfold. In these fanfictions, the writers often take the essence of Jensen and Jared's on - screen chemistry and translate it into different and exciting storylines.
There are also a lot of 'Alternative Universe' (AU) fanfics. These can range from modern AUs where the characters are in a completely different setting, like high school or a corporate office, to fantasy AUs where they might be in a magical world. These AUs give writers the freedom to explore different aspects of the characters' personalities and relationships outside of the show's canon.
One plot idea could be that Aziraphale and Crowley from Good Omens get dragged into a case that the Winchester brothers are investigating in Supernatural. Maybe it's a demon that's a bit too powerful for Sam and Dean, and they need the help of the angel and demon duo who have a different approach to dealing with the supernatural. Another idea is that the two universes' versions of Heaven and Hell start to merge, and characters from both shows have to figure out how to stop it while also dealing with their own personal issues.
One interesting pairing could be Dean Winchester and Crowley. Dean has a lot of experience dealing with demons in the Supernatural world, and Crowley has his own unique charm and deviousness. Their interactions would be full of witty banter and power plays. Another pairing could be Sam Winchester and Aziraphale. Sam is the more intellectual of the Winchester brothers, and Aziraphale is an angel with a vast knowledge of the cosmos. They could have deep conversations about morality and the nature of good and evil.
One popular trope is the 'destined to be together' for the main characters. It often involves a complex relationship between hunters and supernatural beings. Another is the 'found family' trope, where a group of misfits come together to fight against evil. And the 'hidden power' trope, where a character discovers they have a special ability they didn't know about before.