One interesting story could be about a new alien race that the SG1 team discovers. This race has a unique culture and technology that challenges the team's understanding. For example, they might have a way of traveling through time, which leads to all sorts of adventures as SG1 tries to figure out how it works and how it could be used or stopped if it's dangerous.
Some stargate sg1 fanfiction might focus on the relationships between the team members. For instance, a story could explore what would happen if Jack O'Neill had to make a difficult decision between following orders and saving one of his team members. This would test their loyalty and friendship, and show how deep their bonds really are.
There are fanfictions that deal with time - travel in the Stargate SG - 1 universe. The team might go back in time to prevent a major disaster from happening, like stopping the Goa'uld from ever rising to power. Some fanfictions also focus on the Asgard, exploring their culture and technology more deeply. And then there are those that introduce new alien races that the team has to interact with, which can lead to all sorts of interesting plot twists.
One interesting Stargate SG1 fanfic could be a story that focuses on an alternate timeline where the Goa'uld manage to take over Earth. It could explore how the remaining humans fight back underground. Another might be a fanfic that delves into the backstories of minor characters, like the technicians at the SGC. There are also fanfics that involve crossovers, for example, with other sci - fi universes.
There are some fanfictions where a character in Stargate SG1 has a baby unexpectedly. For example, a story might focus on how Sam Carter manages her duties as a scientist and a new mother, and how her team members support her. These types of stories often explore the more human side of the characters.
Another great plot could be time travel that accidentally creates an alternate timeline. The SG1 team then has to find a way to fix it. They might face different versions of themselves or find that their relationships with allies and enemies have changed drastically, which would make for a really exciting story.
One interesting concept is alternative timelines. Fan fiction often explores what would happen if certain events in the Stargate SG1 series occurred differently. For example, if Daniel Jackson hadn't ascended the first time. Another concept is character crossovers, like bringing in characters from other science - fiction universes and seeing how they interact with the Stargate SG1 crew. Also, there are fictions that focus on the backstories of minor characters, giving them more depth and development.
There is also 'Hidden Feelings'. This story is really good as it focuses on the emotional side of Sam and Jack. It shows how they struggle with their feelings in the midst of their military duties. The author does a wonderful job of portraying their internal conflicts and the slow build - up of their relationship.
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.
I think 'Beyond the Gate' is a must - read. This story takes Jack and Sam on a mission that forces them to rely on each other more than ever. It not only shows their professional relationship but also how their personal feelings start to surface during difficult situations. The plot is engaging and the writing style is very immersive.
Some of the best Smallville and Stargate SG1 crossovers involve character interactions. For instance, Lex Luthor could get involved with the NID from Stargate SG1. This could create a whole new dynamic of power - hungry characters vying for control over alien technology. It makes for a really exciting read as the two universes collide in unexpected ways.
One idea could be that the Death Eaters in Harry Potter form an alliance with the Goa'uld from Stargate SG1. The combined forces of dark magic and alien technology would be a huge threat. The heroes would then have to combine their skills, with the wizards using spells to counter the Goa'uld's energy weapons and the SG1 team using their military tactics against the Death Eaters. Another idea is that the Hogwarts students go on a field trip through the Stargate. They encounter various alien races and have to use their magic to survive and make friends. This could be a great way to show how magic can be applied in a completely different setting.