An exciting and original plot is essential. It shouldn't just be a rehash of the original storylines. Instead, it could be a time - travel plot where a character from Highschool DxD goes back in time to the Code Geass world, or vice versa. And the fanfic should have a good pacing, with enough action, drama, and character development to keep the reader hooked from start to finish.
Unique crossovers can make a fanfic stand out. For example, if it combines the magic and devil - related elements of Highschool DxD with the strategic and political aspects of Code Geass in an interesting way. Maybe the main character has to use Geass powers in the Highschool DxD world to deal with devils and fallen angels.
Highschool DxD America fanfiction often brings in new characters that are unique to the American context. These new characters can add fresh dynamics to the story, whether they are human allies or new types of devils.
The Riser Peerage fanfiction stands out because it can take the often - overlooked aspects of the peerage and make them central. For example, the training and development of the peerage members can be a major focus. We might see how they train together, learn new skills, and bond as a group. Fanfictions can also introduce new challenges for the peerage, like dealing with a curse or a mysterious force that targets them specifically. This creates a sense of exclusivity and uniqueness compared to other parts of the Highschool DxD fanfiction world.
Well, in these fanfictions, the alternate Issei can bring about a whole new set of plotlines. Maybe he has a different attitude towards the devils, angels, and fallen angels. Instead of the usual somewhat lecherous but good - hearted Issei, he could be more serious or more mischievous. This alteration in his personality can lead to different story arcs, such as different battles, different ways of resolving conflicts, and different character growths.
The fanfic stands out because of the way it can expand on the characters. By focusing on Epyon and Lamorak, it can show different sides of them. Maybe it shows Epyon's pilot having to face a moral dilemma related to Lamorak that wasn't explored before. This kind of character exploration makes it different from the original anime.
A standout 'Code Geass Leonhardt of the Revolution' fanfic would have a unique take on Leonhardt's character. It could give him traits that are not fully explored in the original series, like a hidden talent for diplomacy or a deep understanding of ancient Britannian lore. This would make his actions in the revolution more interesting and unpredictable.
Love and loyalty also pop up a lot. Highschool DxD has a lot of elements related to love and loyalty within its harem - like setting. When combined with Code Geass, fanfics may show how characters develop new relationships or test their existing loyalties. For instance, a character from Code Geass might find themselves in a situation where they have to choose between their loyalty to their original cause and the new relationships they form in the world of Highschool DxD.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. They usually have a large collection of fanfics for various shows, including Highschool DxD and Code Geass. Just use their search functions and filter for the relevant fandoms.
Unique character design. If the original character (OC) has a distinct personality and backstory that fits well within the Highschool DxD universe, it can make the fanfiction stand out. For example, an OC gamer who has a special power related to gaming that also has an impact on the DxD world in an unexpected way.
One popular 'Code Geass and Highschool DxD fanfic' is 'Code DxD: Lelouch of the Gremory'. It combines the strategic elements from Code Geass with the supernatural and harem aspects of Highschool DxD in an interesting way.
Giving the elf OC a distinct personality trait. Such as being extremely curious about human technology and constantly trying to incorporate it into their elven magic. This would create humorous and interesting situations as they interact with the other characters who are more used to traditional magic and may not understand their fascination with modern gadgets.