Develop his personality. Make him a bit of an enigma at first. He could be quiet but when he speaks, it's always profound. He has a strong sense of justice but also a wild side that comes out in certain situations, like when he's protecting his friends. His relationships with the existing characters are also important. He could have a love - hate relationship with Izaya, being both intrigued and repelled by his manipulative ways.
A male oc could be a supernatural being, like a half - vampire or something similar. He comes to Ikebukuro in search of a cure for his condition. Along the way, he befriends some of the main characters, such as Mikado and Kida, and together they uncover secrets about his origin that are linked to the long - forgotten history of the city.
One common theme is the OC trying to fit into the chaotic world of Durarara. They often have to deal with the various gangs and strange characters. Another theme is the OC having some sort of special power or knowledge that changes the dynamics of the Durarara world. And sometimes, there's a theme of friendship or romance between the OC and the existing Durarara characters.
One idea could be an OC who is a new informant in Ikebukuro. They get caught up in the power struggles between the Dollars, Yellow Scarves, and Saika. For example, they might start off as a neutral party but end up having to choose a side when their own safety is at stake.
Another theme is the exploration of an unlikely relationship. Since Shizuo is such a complex and often violent character, seeing him interact with an original character creates a unique dynamic. It's about two different worlds colliding, like in some fics where the OC is from a completely different background than the Durarara world.
First, give your OC a unique backstory. For example, if they grew up in a family with a connection to the yakuza but wants to break free from that life. This kind of backstory can create internal conflicts. Then, give them a distinct appearance, like having bright purple hair in a sea of more normal - colored hair in Ikebukuro. Also, their personality should stand out. Maybe they are extremely shy but have a hidden talent for street fighting. These elements combined will make your OC memorable.
Sure. One great Durarara x OC fanfiction is 'The Newcomer in Ikebukuro'. It has an interesting OC who gets involved in the complex world of Durarara. Another is 'OC's Adventure in Durarara World' which shows a unique perspective with the OC's journey. And 'Durarara with a Twist of OC' also offers a fresh take on the Durarara universe with its own OC.
Sure. One great 'Durarara Shizuo x OC fanfiction' could be 'Shizuo's Unlikely Encounter'. In this fic, the OC is a new transfer student who catches Shizuo's eye in an unexpected way. Their interactions are really interesting as she tries to understand his explosive nature.
An OC could be a street artist in Ikebukuro who uses their art to tell the stories of the various gangs and groups in the area. This OC could interact with Celty as they both have an interest in the unique aspects of the city. They might start a project to document Celty's presence in a positive way, which could draw the attention of the Dollars and other factions.
Give your OC a unique backstory. For example, if they grew up in a different country but moved to Ikebukuro, it can shape their perspective. Also, a distinct physical trait like a scar or a unique hair color can make them stand out.