Well, Naruto's ability to sense chakra could be translated into sensing the Force in the Star Wars universe. When he turns to the dark side, he might use this ability to seek out and corrupt those with strong Force potential. His chakra - enhanced speed and strength could make him a formidable Sith - like warrior, able to take on multiple opponents at once. For example, he could use his speed to quickly strike down Jedi in lightsaber duels, and his strength to overpower them physically.
If Naruto turned to the dark side in a Star Wars fanfic, his shadow clone jutsu could be used in a very menacing way. He could send shadow clones to infiltrate Jedi or Sith strongholds. His Rasengan, with the added dark side energy, might become a more destructive and unpredictable force, like a mini - black hole of sorts in the Star Wars context.
If Luke turned to the Dark Side, the Rebellion would be in a very difficult position. He was a symbol of hope and a powerful Jedi. Without him on their side, the morale of the Rebellion would drop significantly. The Empire, on the other hand, would gain a very powerful ally. Darth Vader might even try to make Luke his apprentice, and together they could become an almost unstoppable force.
The power balance would be severely disrupted. The Rebellion would lose one of its most important leaders, and the Empire or any other dark side - aligned forces would gain a significant advantage. Her knowledge of the Rebellion's strategies and bases could be used against them.
His friends like Han Solo and Leia would be deeply affected. They would either try to save him or be forced to fight against him. This would create a great internal conflict within the group that once fought together against the Empire. Also, Luke's turn could inspire other young Force - sensitive individuals to follow the Dark Side, thinking that he has found a better path.
I would recommend 'Darkness Rising in the Galaxy'. This fanfiction has an interesting take on how the dark side could influence different planets and species in the Star Wars universe. It has some great action scenes and a complex plot that keeps you hooked from start to finish.
One possible story could be that Ahsoka, after facing a series of great losses and betrayals, starts to be tempted by the Dark Side. Maybe she discovers some ancient Sith knowledge that makes her question her Jedi teachings. She could struggle with the newfound power it offers and the darker emotions it stirs within her, like anger and vengeance.
One possibility in fanfiction could be that Ahsoka is tricked into the Dark Side. Maybe an old enemy manipulates events to make her feel betrayed by the Jedi Order. This could lead her to explore the power of the Dark Side, believing it to be a way to seek justice on her own terms.
First, you need to understand the Star Wars lore deeply. Know the rules of the Force, the history of the Sith and Jedi. Then, create a unique character who has a believable journey to the dark side. For example, they could start with good intentions but get corrupted. Don't be afraid to explore the darker aspects of the Star Wars universe like the Sith teachings and their power - hungry ways.
Some fanfictions may focus on the emotional turmoil that leads Anakin to the dark side during The Clone Wars. His fear of losing Padmé, his ambition to be a great Jedi, and his growing disillusionment with the Jedi Council all play a part. By exploring these emotions in depth, we can see how he becomes more susceptible to the dark side's allure.
The consequences would be huge. The Resistance would lose one of its most powerful allies. It would also mean a new threat to the galaxy. Rey's turn to the Dark Side could inspire others to follow her, leading to a resurgence of the Sith. The balance of the Force would be severely disrupted.
If Anakin never turned, Luke and Leia would have grown up with their father. The Skywalker family would be united, and they could all be trained as Jedi. This would make them a powerful force for good in the galaxy. Also, the Sith would likely have a harder time achieving their goals without Anakin as Darth Vader.