I recall a fanfiction where Lelouch saves a girl from a burning building. It's a more emotional piece as the girl is in a state of shock. Lelouch not only saves her physically but also helps her deal with the trauma afterwards. The story does a great job of portraying Lelouch's softer side.
One great 'Lelouch saves girl' fanfiction is 'The Rescued Princess'. In it, Lelouch stumbles upon a girl being held captive by a rebel group. His quick thinking and strategic skills come into play as he devises a plan to free her. It's a thrilling read with a lot of action and some really sweet moments between Lelouch and the girl.
There's a fanfic called 'Lelouch to the Rescue'. Here, the girl is in danger from a political conspiracy. Lelouch, with his intelligence and charisma, manages to expose the plot and save the girl. The story also delves into the relationship between Lelouch and the girl, showing how she comes to trust and rely on him.
I also like the fanfiction 'Beyond the War: Kallen and Lelouch's Married Life'. It delves into their married life, showing how they support each other in building a new world. It shows their daily interactions, the little arguments and the great love they have for each other.
There's a fanfic called 'Journey Through Time with Lelouch and Nunnally'. In this one, they are sent back in time by a mysterious force. Lelouch uses his intelligence to navigate the past while protecting Nunnally. It's full of exciting plot twists and emotional moments as they rewrite their destinies.
One interesting fanfic could be 'The Guardian of Zero'. In this story, the OC bodyguard has a mysterious past that gets intertwined with Lelouch's plans. The author does a great job of creating tension and interesting character dynamics.
There's a fanfic where a group of Death Eaters end up saving Hermione because they realize she holds the key to a greater power that could benefit them in the long run. They protect her from other dark forces in the wizarding world. It's an interesting take on the relationship between the 'bad guys' and Hermione.
One great fem Lelouch time travel fanfiction is 'The Time - Traveling Empress'. It has an interesting plot where fem Lelouch uses her knowledge from the future to change the course of the story in a really engaging way.
Physically, of course, there would be obvious changes. But personality - wise, he might become more in touch with his emotions. In the original, Lelouch was often very calculating and hid his true feelings. As a girl, society in the story might expect her to be more open about her emotions, which could force her to confront and express them more.
There is a fanfic called 'Lelouch's Time Travel Adventure'. In it, Lelouch travels back in time to a point before the start of the series. He uses his knowledge of the future to try and prevent the events that led to the sad state of the world in the original story. It has some really cool moments where he outsmarts his enemies using future knowledge, and the way the author writes his internal monologues is very interesting, making it a great read for Code Geass fans.
One popular 'Percy dies saving Olympus' fanfiction is 'The Last Sacrifice of Percy Jackson'. In it, Percy's death is a heroic and heart - wrenching moment that has a profound impact on the other characters. It really delves deep into the emotions of the remaining demigods and how they cope with his loss while still having to protect Olympus.
There is a fanfiction where Naruto teams up with some of his friends like Sakura and Kakashi to save the female jinchuriki. Naruto's strong will and his connection to the tailed beasts play a crucial role. He is able to sense where the female jinchuriki are being held captive. They face many challenges along the way, such as traps and powerful guards, but Naruto never gives up. He uses his Nine - Tails chakra to break through barriers and finally reaches the girls.
I'm not sure if there is a specific fanfiction about that. Fanfiction can cover a wide variety of scenarios, but this particular one might be quite rare or might not be in the mainstream. You could try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own.