Well, first of all, make sure you have a basic understanding of the Blue Exorcist universe. That way, you can better appreciate the fanfiction. Also, don't be afraid to explore different genres within the fanfiction world, like adventure or angst. And try to find fanfictions written by authors who seem to really know the characters well. You can often tell by how in - character the dialogue and actions are.
The character development is a great aspect to focus on. In fanfiction, authors often explore different sides of the characters that we might not see in the original work. For example, they might show a more vulnerable side of Rin Okumura.
You can start from the chapter that follows the events of the anime's conclusion. Usually, it's a good idea to look for recommendations from fans or online manga forums for the exact starting point.
One idea could be an OC tamer who has the ability to communicate with rare and powerful demons. For example, they might be able to understand the language of ancient demons that others can't. This would give them an edge in battles and in understanding the demon world better.
The OC could be a new student at True Cross Academy. They start off as an outsider but quickly show their talent as a tamer. This could create new friendships and rivalries with the existing characters like Rin and Yukio.
One great aspect of Blue Exorcist Rin and Yukio fanfiction is the exploration of their brotherly bond. Writers often delve into how they support each other through their difficult exorcist training and the challenges of their unique heritage. For example, in some fanfictions, they might have to face a particularly powerful demon together, and through this, their relationship deepens as they rely on each other's strengths.
Yes, there might be. The Naruto and Blue Exorcist fandoms are both quite large, and it's not uncommon for fans to create crossover fanfictions. You can try searching on popular fanfiction websites like Fanfiction.net or Archive of Our Own.