Another plot could be that Percy and Clarisse are trapped in a parallel dimension. In this dimension, the rules of Camp Half - Blood are different, and they are considered outcasts. They have to find a way to get back to their own dimension. Along the way, they meet strange versions of their friends and enemies. They rely on each other's unique skills. Percy uses his wits to figure out the strange magic at work in this dimension, while Clarisse uses her courage to face the dangerous creatures. As they work together, they grow closer and finally find a way back home, with a much - improved relationship.
The fanfic could start with Percy and Clarisse being chosen for a secret mission. They had to infiltrate a Titan - held fortress. On their journey, they faced many challenges. Percy's ability to communicate with sea creatures helped them cross a large river, while Clarisse's strength was crucial in breaking through some barricades. Along the way, they shared stories of their pasts, their insecurities and dreams. By the time they reached the fortress, they had a deep bond. They managed to complete the mission, and this experience changed their relationship forever.
A plot could revolve around Clarisse getting into trouble in a way that only Percy can help her out of. For example, she accidentally angers a group of minor gods who put a curse on her. Percy, with his charm and quick thinking, manages to negotiate with the gods to lift the curse. In the process, they form an unexpected bond.
Perhaps there's a situation where a powerful deity wants to pit Percy and Clarisse against each other in a tournament. But instead of fighting, they decide to work together to outwit the deity. They train in secret, combining their different fighting styles, and in the process, they form an unexpected bond.
A common trope is 'character growth'. In fanfics like 'Clarisse's Evolution', we see Clarisse grow from a brash and sometimes mean character to someone more understanding and empathetic. Percy also often experiences growth in these fanfics. Another is the 'mystery quest' trope. For example, in 'The Quest for the Lost Artifact', Percy and Clarisse go on a quest to find a powerful artifact. It involves a lot of mystery - solving and adventure. And don't forget the 'forbidden friendship' trope in some fanfics where their friendship is frowned upon by others at first.
One great fanfic is 'Clarisse's Redemption'. It shows Clarisse in a new light, dealing with her insecurities while still maintaining her tough exterior. Another is 'Percy and Clarisse: An Unexpected Alliance' which focuses on how they put aside their differences to face a common enemy. And 'The Friendship of Percy and Clarisse' is also a good one, exploring how their relationship could develop into a deep friendship over time.
One interesting storyline could be Percy and Clarisse teaming up for a quest against a common enemy. They start off bickering as usual but gradually learn to respect each other's strengths. For example, Clarisse's brute force combined with Percy's strategic thinking could lead them to victory over a powerful monster.
A cool plot could be that on Percy's birthday, the gods decide to grant him a special wish. But there's a catch - he has to complete a mini - quest first. So Percy, along with his closest friends, embarks on this quest that takes them to a mysterious island. On the island, they face various challenges, like fighting off strange monsters. When they finally succeed, Percy gets his wish, which could be something like ensuring the safety of all his friends at Camp Half - Blood forever.
I really like 'Clarisse and the Quest for Honor'. In this fanfiction, Clarisse goes on a solo quest that challenges her in ways she never expected. It's full of action and also some really interesting interactions with minor characters from the Percy Jackson universe that you don't often see in the main series.
A really good 'Percy Jackson x Clarisse Fanfiction' is 'When Percy and Clarisse Train Together'. In this one, they are forced to train together and through the process, they discover new things about each other. They start to respect each other more and it's a great read for those who like character - development - focused stories.
There's a fanfic called 'Clarisse's Secret Quest'. In this story, Clarisse embarks on a solo adventure that was not part of the original plot. It's interesting because it gives her more agency and shows her skills outside of the camp. She has to face some unique monsters and solve puzzles all on her own.