In the realm of Inuyasha female OC fanfiction, there are several tropes that are often used. The 'Time - Traveler' trope can be interesting. The female OC might be from the modern world like Kagome and get sucked into the feudal era. The 'Secret Identity' trope is also popular. She could be hiding her true nature, perhaps being part - demon herself but trying to pass as human. And the 'Mentor' trope is great too. She could be an experienced warrior or mage who teaches Inuyasha and his friends new skills.
One popular trope is the 'Mysterious Newcomer'. The female OC shows up out of nowhere, with a strange power or knowledge that intrigues Inuyasha and the gang. Another is the 'Tragic Past' trope. Maybe she lost her family to demons and is now on a journey of revenge. And there's also the 'Love Interest' trope, where she has feelings for Inuyasha or another character in the series.
Some common tropes for female OCs in Inuyasha fanfiction include the 'Powerful Healer' trope. She has the ability to heal the most serious of wounds, which is very useful in a world full of demon attacks. Then there's the 'Lost Princess' trope. She could be a princess from a long - forgotten kingdom, with a destiny to reclaim her throne. Also, the 'Outcast' trope is popular. She's shunned by society because of her unique abilities or appearance, but she finds acceptance with Inuyasha's group.
Some great tropes for Bleach female OC fanfiction are the 'chosen one' trope. Your character could be chosen by some ancient power to save the Soul Society. The 'fish out of water' trope is also good. If your OC is from a different dimension or realm, she'll have to adjust to the Bleach universe. And then there's the 'redemption arc' trope. Maybe she was once a bad guy but is now trying to make amends. These tropes can add depth and familiarity to your story.
In Once Upon a Time fanfiction, a common trope for female OCs is the 'love interest' trope. She could be the love interest of a main character, like Hook or Charming. Then there's the 'mysterious stranger' trope. She arrives in Storybrooke or the Enchanted Forest with a mysterious past and unknown powers. Also, the 'redeemed villain' trope can be applied. Maybe she was once on the wrong side but then sees the error of her ways and joins the good guys in the fight against evil in the Once Upon a Time universe.
Then there's Lyra. She's a female OC who is a brilliant scientist. She reverse - engineers some of the Omnitrix's functions and creates her own power - enhancing devices. She often teams up with other OCs and uses her intelligence along with the Omnitrix's powers to outwit their enemies.
A frequently used trope for Madoka Magica Yuri OCs in fanfiction is the 'opposites attract' scenario. For example, an OC who is very outgoing and confident might be attracted to a more reserved and shy character, and vice versa. This creates a lot of tension and interesting character dynamics in a yuri relationship. Another is the 'forbidden love' trope. Maybe the Yuri OC is from a different faction or has a secret that makes her relationship with another girl difficult or dangerous, adding an extra layer of drama to the story.
There's the 'legacy' trope. The male OC could be related to a famous MCU character and has to live up to their name or break free from their shadow. For instance, he could be the son of a fallen hero. Another trope is the 'chosen one' trope. He's the only one who can defeat a certain big bad in the fanfic. And the 'mentor - mentee' trope, where he either mentors a younger character or is mentored by an established MCU hero like Captain America or Iron Man.
One popular trope is the 'fish out of water' scenario. Your female OC could be from a different era or dimension and is now trying to adapt to the world of the Power Rangers. Another is the 'chosen one' trope, where she is destined to have a special role in saving the day. For example, she might be the only one who can unlock a powerful weapon. The 'rival - turned - ally' trope is also great. She starts off competing or feuding with one of the existing Rangers but then realizes they need to work together. And of course, the 'secret power' trope, where she discovers a hidden ability during a crucial moment in the story.
A great trope is the 'unexpected power - up'. Your female OC might be in a difficult situation, and suddenly, she discovers a new power within herself that helps her turn the tables. The 'protector' trope is also good. She feels the need to protect someone or something in the Highschool DxD world, like a group of innocent humans or a sacred place. And the 'identity crisis' trope can add an interesting layer to her character. She might be confused about whether she belongs to the devil side or the angel side, or something else entirely, and this internal struggle can drive the story forward.
One common trope is the 'lost heir' trope. The OC is often revealed to be the heir of some important clan or have a special bloodline. Another is the 'outsider who becomes a hero' trope. They start as an unknown in the Naruto world but through their skills and determination, they rise to prominence. The 'love interest for a main character' trope is also seen a lot, where the OC becomes romantically involved with Naruto or another main character.
There's 'Luna', an OC often depicted as a half - moon spirit with the ability to manipulate moonlight. She's popular because she brings a touch of ethereal beauty and mystery to the Monster Prom setting. Her storylines usually involve her using her powers to create beautiful light shows during the prom or helping other characters with their personal problems under the moonlight.
Then there's Sophia. She's known for her charm and ability to form alliances easily. In the fanfictions, she can get people on her side and work towards victory in a very diplomatic way.