One idea could be that Galen Marek and Ahsoka Tano team up to face a new Sith threat. They might initially be suspicious of each other due to their different backgrounds. Galen with his training under Vader and Ahsoka's Jedi training. But as they work together, they start to respect each other's skills and form a strong bond.
They could go on an adventure to find a lost Jedi or Sith artifact. This would involve them traveling to different planets, facing various challenges like dangerous creatures and traps. For example, on a planet filled with lava, they have to use their combined skills of the Force to cross safely.
One idea could be a story where Galen Marek and Ahsoka Tano team up to face a new threat in the galaxy. They could combine their unique skills, Galen's powerful Force abilities and Ahsoka's combat and strategic knowledge. Maybe they meet on a neutral planet and at first are distrustful of each other, but as they face challenges together, they start to respect and rely on one another.
A really interesting plot could be set in an alternate universe where Galen Marek never turned to the dark side. He and Ahsoka meet during a mission to save a planet from a natural disaster. They find out that there are dark forces trying to take advantage of the chaos. Together, they have to fight off these forces while also trying to save the planet and its inhabitants. Galen's knowledge of the Force in a more positive light and Ahsoka's wisdom as a former Jedi Padawan combine to make a great team.
They might start off warily. Galen, being used to the ways of the Sith, would be cautious around Ahsoka, a Jedi. Ahsoka, on the other hand, would be on guard but also curious about Galen. Eventually, they could start to exchange combat techniques and stories of their past experiences.
It could develop into a friendship based on mutual understanding. Galen has had a difficult past, being manipulated by the Sith. Ahsoka also has her own traumas from leaving the Jedi Order. They could bond over their shared experiences of feeling like outsiders in a way. They might share stories of their pasts and find common ground, which leads to a deeper connection.
One key theme is the idea of redemption. Galen Marek has a complex past, and in many fanfics, his relationship with Ahsoka Tano helps him find a new path. Another theme is the power of friendship. They come from different backgrounds but learn to trust and support each other. And of course, there's the theme of adventure as they often embark on various quests together.
Well, Galen Marek in Star Wars Rebels fanfiction is a great concept. His relationship with the dark side and his journey back to the light (if that's how a fanfic writer takes it) can be a source of inspiration. He could be a mentor figure to the young Jedi in training like Ezra. His combat skills and knowledge of the Sith could be used to outwit the Inquisitors. Fanfic writers can explore how he adapts to the Rebels' way of life, which is so different from what he has known in the past.
In Clone Wars fanfiction involving Galen Marek and Ahsoka, their meeting could be a turning point in the story. Galen, with his complex past, might find in Ahsoka someone who can relate to his struggles. Ahsoka, on the other hand, could see Galen as an opportunity to expand her understanding of the Force. They might start off as wary of each other, but as the story progresses, they could form a strong bond and work together to bring peace or fight against the dark side.
Galen Marek was trained by Darth Vader, so he has a connection to the dark side, while Ahsoka Tano was a Jedi Padawan. In a fanfiction, their different backgrounds can be blended by having them teach each other. For example, Galen could show Ahsoka some of the more aggressive combat techniques he learned, which she could then adapt to her own fighting style. And Ahsoka could teach Galen about the Jedi code and how to use the Force for good. This exchange of knowledge could create an interesting dynamic in the story.
There's a fanfic called 'Galen Marek: Unseen Adventures in the Clone Wars'. This one focuses on the untold stories of Galen Marek during the Clone Wars. It has some exciting action scenes and also gives a fresh perspective on his relationships with other characters in the Star Wars universe.