There are probably quite a few. Fanfiction often takes elements from both shows and weaves them together in creative ways. It could be a story where a Torchwood character discovers the secret of immortality in the Highlander sense, or vice versa. Maybe a Highlander character joins Torchwood to use their skills in a different way, adding a whole new dynamic to the Torchwood team.
Yes, there are likely some interesting ones. You can start by looking on fanfiction websites. Some might explore unique character interactions, like how the characters from Torchwood would interact with the immortals in Highlander. They could create new and exciting storylines that combine the two universes' mythologies.
Sure. A good fanfiction might involve the technology from Torchwood being used in the Highlander world. For example, Torchwood's alien - related tech could have an impact on the immortals' battles or their way of life. It could also be about an immortal getting involved with Torchwood's mission to protect the Earth from alien threats.
You can try websites like Archive of Our Own (AO3). It has a vast collection of fanfiction from various fandoms, and there's a good chance you'll find some torchwood highlander crossover stories there.
Yes, there are likely some interesting ones out there. A good place to start looking could be on fanfiction websites like Archive of Our Own. Some might explore how the characters from NCIS interact with those from Highlander in unique crime - solving scenarios or character - development arcs.
One interesting story could be about how the characters from Highlander and SG1 team up to fight a common enemy that has the ability to travel between different dimensions. This would bring together the immortality concept from Highlander and the inter - galactic exploration of SG1.
It could bring together beloved characters from both shows in unexpected ways. Maybe there's a shared adventure that combines their unique skills and storylines.
One idea could be that Buffy and the Highlander team up to fight a common supernatural enemy that is causing chaos in both their worlds. Maybe a powerful demon that can't be killed easily, and the Highlander's immortality and Buffy's slayer skills are needed to defeat it.
One idea could be that the characters from Torchwood and Arrow team up to fight a common enemy that has some sort of interdimensional powers. Maybe a villain from Arrow's world has found a way to access Torchwood's technology and is using it for evil, and the two groups have to combine their skills to stop it.
One interesting torchwood fanfiction could be the ones that explore the backstories of the characters in more depth. For example, a story might focus on Owen's life before joining Torchwood and how his experiences shaped his somewhat cynical personality. Another type could be the alternate universe stories, where the events in the original series take a different turn. Maybe in one, Captain Jack doesn't die as often and how that changes the dynamics of the team.
One idea could be that Xander discovers he has the immortality of a Highlander. He then has to navigate his newfound ability while still dealing with the usual supernatural threats in his world. Maybe he teams up with a Highlander character to learn more about his new condition.
Well, perhaps there's a Highlander who stumbles into the wizarding world. He might be confused at first by all the magic but then realizes he can use his immortality and combat skills to his advantage. He could get involved in the fight against Voldemort, using his unique abilities. Or, there could be a magical tournament in the Harry Potter world that also includes Immortals from the Highlander world, and they compete using both magic and their Highlander powers.
One idea could be a Highlander character finding a Stargate and being transported to different planets. They could use their immortality to survive in the various dangerous situations on alien worlds and perhaps encounter Goa'uld who are interested in their immortality.