One great Percy Jackson OC Harem fanfic is 'The New Hero's Harem'. It has an interesting plot where the OC character interacts with the original Percy Jackson characters in unique ways, and the harem elements are well - developed.
Power and its implications are also common themes. The OC usually has some sort of special power or ability, and how they use it to protect their harem or gain more influence in the demigod world is often explored. Adventure is also a big part. They go on quests and face challenges together, which helps to strengthen the bonds within the harem.
One great Percy Jackson OC Harem fanfiction is 'The New Hero in Camp Half - Blood'. It has an interesting original character who forms unique relationships with the existing characters in a harem - like setting. The plot is engaging as it weaves in the OC's backstory and how they interact with the Percy Jackson universe.
I highly recommend 'The Outcast Demigod'. This fanfiction features an OC who doesn't fit in at first. The author does a wonderful job of showing the OC's struggle to find their place among the other demigods. It has some really intense battle scenes and a lot of heart - warming moments as the OC forms friendships. The story also delves into the OC's backstory in a very interesting way, making it a great piece of fanfiction.
Yes, it is quite popular. Many fans enjoy exploring different relationship dynamics for Percy Jackson in fanfiction, and the 'harem' concept, where he has multiple romantic interests, offers a lot of creative possibilities for writers to play with different character interactions and storylines.
Annabeth could be one. She's been Percy's close friend and has a strong connection with him. Also, Piper could be a part as she has her own charm and abilities. And maybe Thalia, with her fierce nature.
One great 'Percy Jackson Harem Fanfiction' is 'The Son of Poseidon's Harem'. It has an interesting plot where Percy has to navigate relationships with multiple characters in a unique way. The character development is quite engaging.
You also need to consider the overall plot. It can't just be about the harem. There should be a bigger goal or conflict for your OC. For instance, they could be on a quest to find a lost artifact that will save the demigod world. And make sure to give each character in the harem their own unique voice and role in the story. This will make the relationships more believable and interesting for the readers.
When writing a Percy Jackson OC Harem fanfiction, it's important to focus on character development. The OC should grow and change throughout the story. Regarding the harem, it can be a mix of canon characters and your own original characters if you want. Write detailed interactions between the OC and the members of the harem. Show their emotions, conflicts, and how they resolve them. And don't forget to add some of the Percy Jackson - style adventure and magic into the story.
One common theme is friendship. Despite the harem aspect, the relationships often start as friendships. Another theme is adventure. Just like in the original Percy Jackson series, the fanfictions usually involve quests and battles.