Perhaps there could be a lost Mandalorian artifact that the Rebels accidentally discover. This draws the attention of a group of Mandalorians who think the Rebels are trying to steal it. As a result, they have to work together to figure out the true purpose of the artifact and face off against a common enemy who also wants it for their own evil plans.
Another plot could involve a young Mandalorian who has been raised in a more isolationist way but becomes intrigued by the Rebels' fight for freedom. He decides to join them on a dangerous mission, bringing his unique Mandalorian skills. Along the way, he has to overcome the differences in culture and ideology between the Mandalorians and the Rebels.
In this fanfiction, Ezra could be on a mission and stumbles upon an ancient Mandalorian artifact. This artifact has some sort of connection to the Force, which draws Ezra in. As he delves deeper into the Mandalorian culture to understand the artifact, he uncovers secrets that not only change his perspective on the Mandalorians but also give him new powers or knowledge that he can use against the Empire. The story could explore how Ezra balances his newfound Mandalorian - influenced identity with his role as a rebel and a Force - user.
One idea could be a crossover with the original Star Wars trilogy characters. For example, having Luke Skywalker meet the Rebels crew and learn from their guerilla warfare tactics against the Empire. It would be exciting to see how their different fighting styles blend and how they interact with each other.
One plot idea could be that a character from Clone Wars gets accidentally sent to the time period of Rebels. For example, Ahsoka Tano could end up in the middle of a battle between the Rebels and the Empire. She might use her knowledge from the Clone Wars era to help the Rebels in unexpected ways, like teaching them some old Jedi combat techniques that were lost over time.
There are several great plot ideas. For instance, imagine a situation where Yoda, before his death, set in motion a series of events that are only starting to unfold during the Rebels' time. Maybe he planted the seeds for a new Jedi order in a very secretive way. A young Rebel might stumble upon these secrets. Another idea is that Yoda's teachings, which were thought to be lost, are rediscovered by the Rebels through an ancient Jedi artifact. This discovery changes the way they approach the fight against the Empire. And what about a story where Yoda's influence reaches out to a non - Force - sensitive character in Rebels, inspiring them to do great things for the Rebellion in a different way?
One idea could be that Master Chief somehow gets transported to the Star Wars Rebels universe. He could team up with the Ghost crew. His advanced combat skills and Spartan armor would be a huge asset against the Empire. Maybe he'd share his knowledge of advanced weaponry with the rebels.
One idea could be a crossover with the original Star Wars trilogy characters. Maybe the Rebels crew teams up with Luke Skywalker and Han Solo to take on a new, powerful Sith threat. This would bring together the scrappy underdog feel of the Rebels with the classic heroism of the original trilogy.
Well, a cool plot for a Star Wars Mandalorian SI fanfiction could involve the self - insert being a former Jedi in hiding. They could use their Jedi training secretly to help the Mandalorian and Grogu. Maybe they teach Grogu some new skills that are a blend of Jedi and Mandalorian ways. Also, the self - insert could have a past connection to the Sith, which adds an interesting layer of conflict as they struggle not to be drawn back to the dark side while helping the Mandalorian. Another idea is that the self - insert is an artist who uses their art to document the adventures of the Mandalorian, and in the process, their art gains some sort of magical or important significance in the Star Wars galaxy.
One idea could be Ezra getting lost in time and space and ending up in a situation where The Mandalorian has to help him. Maybe Ezra's powers are malfunctioning, and the Mandalorian has to protect him from those who would take advantage of his weakened state.
One idea could be exploring the post - Rebels era and how the actions of the main characters have influenced the new generation. Maybe a young Jedi discovers an old artifact left by Ezra Bridger and it sets them on a journey to learn more about the Rebels' fight.
A character could experience a moral transformation. A former Imperial who has joined the Rebels might start to transform back to his old ways due to the stress and hardships of the Rebellion. This internal struggle could be a central part of the fanfiction. The other Rebels would then have to decide what to do with him - try to reform him again or cut their losses. It would show the complex nature of the Rebels' cause and the different types of people it attracts.