There's also 'Sullivan and the Unlikely Ally' which is a great read. The author does an amazing job of portraying the OC's unique personality. The interactions between the OC and Inspector Sullivan are filled with tension and chemistry. It really makes you root for their relationship as the story progresses.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of various fanfictions, and you're likely to find quite a few 'Inspector Sullivan x OC' ones there. Just use the search bar and type in the relevant keywords.
A popular one is 'OC's Volleyball Journey'. In this fanfic, the OC has a unique backstory that ties in really well with the Haikyuu universe. The author does a great job of making the OC seem like a natural part of the story, and the volleyball matches are described vividly, making it a thrilling read.
One great Sasuke x OC fanfiction is 'A Bond Beyond Konoha'. It beautifully weaves a story of an original character who enters Sasuke's life at a crucial point. The OC has a unique backstory that complements Sasuke's journey. Another is 'Sasuke's Unforeseen Encounter'. This one focuses on how the OC's presence changes Sasuke's perspective on relationships. It has really well - written dialogues that bring out the chemistry between them.
There's this 'Loki x OC Fanfiction' called 'Love in the Shadows'. The OC in this story is a thief with a heart of gold. She accidentally steals from Loki and that's how their story begins. It's full of witty banter between them. The author has created a really unique OC who is not intimidated by Loki's power and status, which makes for a very engaging read.
One great 'Kol Mikaelson x OC Fanfiction' is 'A New Beginning'. It beautifully weaves a story where the OC, a powerful witch, enters the Mikaelson's world and has an instant connection with Kol. The character development is really well - done, and the author does a great job of capturing Kol's complex personality.
One great 'John Watson x OC Fanfiction' is 'A New Beginning'. It has a really interesting plot where the OC is a detective from another country who teams up with John Watson. The character development is well - done, and it gives a fresh perspective on the Sherlock Holmes universe.
One great 'Tobi Obito x OC Fanfiction' is 'The Hidden Bond'. It has a really interesting plot where the OC has a unique connection with Obito that gradually unfolds throughout the story. The character development is well - done, especially for the OC as she starts off as a shy girl but grows into a strong kunoichi through her experiences with Obito.
One great 'Harvey Specter x OC Fanfiction' is 'A New Beginning'. It shows the OC character entering the law firm and her initial interactions with Harvey. The chemistry between them is well - written and the story follows their relationship growth in a very believable way.
I really like 'The OC and the Weasley Pranksters'. In this fanfic, the OC is a transfer student from a different magical school. The way the story unfolds with the twins trying to include the OC in their pranks and the OC's own unique magical abilities adding to the chaos is very engaging. It's full of fun and light - hearted moments that keep you reading.
One great Scarlet Witch x OC fanfiction is 'A New Beginning'. It beautifully weaves the story of an OC who enters the Scarlet Witch's world and how their relationship evolves. The author does an excellent job of capturing the Scarlet Witch's complex character and the OC's unique traits. It's filled with emotional moments and exciting plot twists.