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.
A great Highlander SG1 crossover fanfiction could involve the sharing of technology. Maybe the Highlander characters introduce some ancient and powerful weapon or device to the SG1 team, which then helps them in their fight against the Goa'uld. This would also lead to some interesting cultural exchanges between the two groups.
A possible plot could involve an immortal villain from the Highlander world using the Stargate network to spread chaos across different planets. The SG1 team, with the help of some friendly Highlander characters, has to track him down and stop him before he causes too much destruction.
You can start by looking on fanfiction.net. It has a large collection of fan - created stories, and there's a good chance you'll find some Highlander SG1 crossovers there.
Sam Carter and Methos would be a fascinating combination. Sam's scientific genius could be intrigued by Methos' ancient knowledge and long - lived existence. Methos might also be able to offer some unique perspectives on the technology Sam deals with in the Stargate program, and together they could come up with innovative solutions to problems.
Well, there could be a fanfiction where Spike from BtVS gets beamed onto an SG1 adventure. He might initially be confused but then use his vampire skills to fight off some of the alien threats. There could also be a story where Daniel Jackson visits Sunnydale and tries to study the Hellmouth, and in the process, he and the Scooby Gang end up working together to stop a new threat that emerges from the combination of alien and demonic forces.
One interesting story could be about the characters from NCIS and SG - 1 teaming up to solve a mystery that involves both Earth - based crimes and alien technology. Maybe they have to track down a stolen alien weapon that is being sold on the black market on Earth.
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.
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 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 to have a character from SG1 accidentally end up in the SGA universe and have to adapt to the new technology and threats there. For example, Jack O'Neill could find himself on Atlantis and his military tactics and dry humor would create interesting interactions with the Atlantis team.
One great sg1 crossover fanfiction could be the ones that cross it with 'Star Trek'. In such stories, characters from SG1 might find themselves in the Star Trek universe facing new challenges and meeting different alien species. It's really interesting to see how the different technologies and cultures interact.