Well, 'CC's Redemption Arc Fanfic' is quite popular. In this fanfic, CC tries to make up for her past actions in a very different way than in the original series. It gives a fresh perspective on her character. Also, 'CC and the Mysterious Island' is a fun read where CC gets stranded on an island and has to figure out how to get back while dealing with various mysteries.
One great fanfiction could be about Lelouch and CC going on an adventure outside of the main plot's battles. They might discover a hidden land where they have to rely on each other in new ways, deepening their bond. Maybe they find a magical artifact that only CC can understand, and Lelouch has to protect her while she figures it out.
One popular 'Code Geass Lelouch x CC fanfic' is 'A Different Path'. It explores an alternate universe where Lelouch and CC's relationship develops in a more peaceful setting. Another good one could be 'The Bond Between Them' which delves deep into their emotional connection.
One common theme is the exploration of their complex relationship. Given their unique personalities and the circumstances in the Code Geass world, fanfics often focus on how they understand and support each other. Another theme is the idea of power and sacrifice. Since both Lelouch and CC are tied to power in different ways, many fanfics will play with the concept of what they are willing to sacrifice for each other or for their goals.
A good fanfiction in this regard should have a believable build - up to the kiss. It should stay true to the characters' personalities. For example, Lelouch's complex and calculating nature should be reflected in how he approaches the moment. CC's mysterious side also needs to be maintained.
One possible fanfic could be about Suzaku getting a chance to go back in time and trying to change his relationship with Lelouch. He might use the knowledge he has from the future to avoid some of the tragic events that happened between them. CC could play a role as a guide or an observer, adding her mysterious charm to the story.
There are fanfictions that explore their relationship from a more emotional side. For example, a story where CC reveals her past traumas to Lelouch, and he in turn shows her a side of himself that he has never shown to anyone else. This deepens their bond in a very different way compared to the main series.
Well, a popular 'Code Geass Jeremiah' fanfic is 'Jeremiah's New Beginnings'. It starts with Jeremiah at a crossroads after the main story's conclusion. It's interesting as it gives him a new mission that is related to his past but also different. Some fanfics also play with the idea of Jeremiah having different abilities or alliances. For example, there's one where he teams up with an unexpected character to face a new threat.
Well, it's a bit hard to recommend specific ones as the concept of 'bashing' can be quite subjective. However, if you search on some fanfic platforms with the keywords 'Code Geass Suzaku Bashing Fanfic', you might come across some interesting reads. Some fanfics might explore his relationship with Lelouch in a more critical way, or his loyalty to Britannia, which could be seen as reasons for bashing his character in those stories.
Well, a really interesting 'Code Geass Impulse' fanfic is 'Impulse's Hidden Potential'. In this fanfic, it explores the untapped powers and abilities that could potentially exist within the Code Geass universe related to the Impulse concept. 'The Impulse Revolution' is also quite good. It imagines a scenario where the Impulse aspect of the story leads to a complete upheaval of the existing power structures in the Code Geass world. And then there's 'Impulse and the Lost Souls' which tells a story about forgotten characters being brought back into the fold because of the Impulse factor.
Fanfics often take on different genres as well. Some Code Geass Code Fanfic are action - packed adventures that take the characters on new quests outside of the original storyline. Others could be more of a mystery, where the characters have to solve a complex problem that was not part of the original plot. And then there are the ones that are more character - driven, focusing on the emotional growth and development of the characters.