Well, there's also 'Male OC and the Time - Traveling Adventure'. In this story, the male OC accidentally gets caught up in a time - traveling mishap. He has to find his way back to his own time while dealing with all the wacky characters and situations that Adventure Time is known for. It's a really fun read with lots of action and humor.
Another good one is 'The Mysterious Male OC in the Enchanted Forest'. This fanfiction focuses on a male OC who stumbles upon a magical part of the Enchanted Forest that no one else has ever found. It has a really cool mystery element to it and the character development is well - done. The author does a great job of making the OC fit into the Adventure Time universe.
Well, I really like 'The Ice King's Redemption'. It gives a different perspective on the Ice King, showing his journey towards becoming a better character. Then there's 'Marceline's Hidden Past' that delves deep into Marceline's backstory and reveals some secrets that we don't get to see in the show. Also, 'Lumpy Space Princess' fanfictions are often interesting, like 'LSP's Galactic Adventure' where she goes on an intergalactic journey and causes all sorts of chaos.
One great 'nightmare time adventure time fanfiction' is 'The Darkened Woods'. It takes the characters from Adventure Time into a nightmarish realm where they have to face their deepest fears. The story has a really spooky atmosphere and the author does an amazing job of keeping the characters' personalities intact while in this new, terrifying setting.
One popular Adventure Time jealous fanfiction is 'Green-Eyed Envy in Ooo'. It focuses on Finn getting jealous when Princess Bubblegum spends a lot of time with another character. The story is well - written and really delves into Finn's insecurities.
One great 'Fern Adventure Time fanfiction' is 'Fern's New Beginnings'. It explores Fern's character development further in new and exciting scenarios. It gives more depth to his relationships with other characters from the show.
Well, 'Jake's Dreamscape' is a really cool fanfiction. In this story, Jake enters a dream world where the rules are all different from the normal Adventure Time world. His shape - shifting skills are put to the test in very unexpected ways. It's a great exploration of Jake's character and the wild possibilities within the Adventure Time setting.
Well, there's a fanfiction where Stormo teams up with Finn and Jake to face a new threat in Ooo. It shows how Stormo's skills can complement the duo's abilities. It's a really exciting read that you can find by searching for Adventure Time Stormo on popular fanfiction platforms.
Another good one is 'When Naruto Met Marceline'. This fanfiction focuses on the encounter between Naruto and Marceline. Their personalities clash and mesh in interesting ways. The author does a great job of showing how Naruto's positive, can - do attitude affects Marceline, and how her more laid - back, but powerful vampire self influences Naruto. It's full of action, humor, and some really heartwarming moments.
There's also 'Fiolee: A Different Kind of Adventure'. This fanfic takes the characters on a journey through a magical realm where they have to face their feelings for each other while also dealing with various threats. It has some really cute and intense moments between Fionna and Marshall Lee that are a joy to read.
Well, there's a fanfiction called 'Momoxtoshir's Encounter'. In this story, Momoxtoshir meets some of the main Adventure Time characters like Finn and Jake. It's a really fun read as it shows how Momoxtoshir interacts with them and gets involved in their wacky adventures. It has a lot of humorous moments and also some touching scenes that make it stand out.
Sorry, without a more specific understanding of what exactly 'good adenturr time oc fanfiction' is, it's hard to recommend. But you can start by looking on popular fanfiction websites like Archive of Our Own or FanFiction.net. Search for stories with adventure themes and original characters.