Another plot could be that the girlfriend is from a rival hunter family. At first, there's tension between them because of their families' differences. But as they get to know each other better, they fall in love and try to bridge the gap between their families. This would be a story full of conflict and resolution.
One common plot is the role - reversal. For example, with Dean as a female, she might face different challenges in the hunting world that are more gender - specific. Maybe she has to deal with male hunters not taking her seriously at first. Another plot could be a love story where female Dean falls for a character in a different way than in the original series, like a female Dean falling for a female character, exploring a new kind of relationship dynamic.
One interesting plot could be Dean getting dropped into the Gears of War universe and having to team up with the COG soldiers. He'd bring his hunting skills and knowledge, which would be quite different from the military tactics of the Gears world. Maybe he'd use his knowledge of monsters to help them deal with some new, mutated Locust-like creatures.
I think Emilia Clarke could be a great choice. She has that charm and the ability to play a strong - willed character, which would be perfect for the role of the girlfriend. She can bring both the feisty and the loving sides to the character.
One interesting plot could be that Naruto is adopted by a powerful and kind shinobi from another village. This new family could teach Naruto different jutsu and a new way of life, changing his perspective on the ninja world. For example, if he's adopted by a Waterfall Village shinobi, he might learn their unique water - based techniques.
In some fanfictions, Naruto is brainwashed to believe he is from another village. So he starts working for their goals. This could lead to a lot of interesting interactions as he clashes with his former comrades. The story might explore how he slowly starts to remember his true identity through small flashbacks and the bonds he has with his friends.
One interesting plot could be Sonic forgetting who his friends are. His friends then have to re - introduce themselves and remind him of all the good times they've had together. For example, Tails could show Sonic their workshop and all the inventions they made together, gradually triggering Sonic's memories.
Another plot might involve Dipper having to keep his powers a secret from his family and friends at first. He struggles with this as he tries to figure out how to control them without raising suspicion. For example, he accidentally makes things levitate when he's around Mabel, and has to quickly cover it up.
One interesting plot could be Naruto using the Rinnegan's powers in unique ways during battles. For example, he might combine the Rasengan with the Deva Path's ability to attract and repel, creating a new and powerful attack.
Perhaps in the fanfiction, Hermione gets even with those who underestimated her. She could expose their wrongdoings or secrets, using her skills in research and deduction. For example, if someone tried to take credit for her work, she'd find a way to prove it was hers and make them look foolish in the process.
One plot could be Naruto getting a mysterious illness that no one in the village can figure out. His friends, like Sakura and Sasuke, start to search for a cure. They might go on a journey to find a rare herb or seek the help of an old sage. Another could be that the illness is a result of a new enemy's jutsu. As he gets sicker, the village starts to worry about their future without their hero.