One great fanfiction where Darth Vader turns good is 'The Redemption of Vader'. In it, Vader has a series of encounters that make him question his dark path. Another is 'Vader's New Hope' where he starts to secretly help the Rebellion. There's also 'Good Vader' which focuses on his internal struggle to break free from the Dark Side.
He might be shocked by the advanced technology. The Empire's weaponry would seem primitive compared to future tech. He could also be intrigued by the new forms of the Force if they had evolved.
In many such fanfictions, their relationship becomes more positive. Vader starts to see Luke as a chance for true redemption. He may become more of a mentor to Luke, sharing his knowledge of the Force.
There's a fanfic titled 'Vader's Redemption'. In this story, Vader starts to question his loyalty to the Emperor much sooner, especially after some profound encounters with Luke. It's a great read as it shows the internal struggle of Vader while also exploring the bond between father and son in a new light. It's full of action-packed scenes and deep emotional moments.
A good 'Star Wars Darth Vader Fanfic' should have a deep understanding of the character. For example, it should explore Vader's duality - his past as Anakin and his current state as Vader. Also, it should fit well within the Star Wars universe in terms of the lore and the technology.
Well, a really good fanfiction is 'Darth Vader: Clone Wars Origins'. It gives a unique perspective on how Vader's character might have developed during the Clone Wars. It has some great action scenes and explores his relationship with other key characters like Palpatine. Another one to check out is 'Vader in the Clone Wars: The Untold Story'. This fanfic fills in some gaps in the official story and shows Vader's influence on the events of the Clone Wars in a different light. And then there's 'Clone Wars: Vader's Redemption', which takes a more speculative approach to Vader's character and his potential for change during the Clone Wars.
There could be fanfictions that focus on Darth Vader's secret missions during the Clone Wars. Missions that the Jedi didn't know about.
A really exciting plotline might involve Ahsoka getting trapped in Vader's memories. She has to navigate through his past, seeing his fall to the dark side and his relationship with Anakin Skywalker. This could lead to some very emotional and thought - provoking moments as she tries to understand him better and perhaps find a way to save him.
A cool concept would be a crossover with the Star Trek universe. Darth Vader's Sith ideology would clash with the Federation's principles. He might be intrigued by the advanced technology of the Star Trek world, and there could be an epic battle between the power of the Force and the technology of the future. Or perhaps he'd form an unlikely alliance with some of the more morally ambiguous characters in Star Trek.
Love is a major theme. Their love was intense and tragic, and fanfictions often explore different aspects of it, like how it endured or could have been saved. Another theme is the struggle between good and evil, as Anakin became Darth Vader. Padme represents the good he left behind, and fanfictions play with this dynamic.
One key theme is redemption. Darth Vader's journey from the dark side back towards the light is often explored. For example, in many fanfics, Luke plays a crucial role in bringing out the good in his father. Another theme is family. Despite the dark and light divide, they are still father and son, and this complex family dynamic is a major part of the stories.