One great plotline could be Claire and Alex going on a solo hunt together. They might encounter a unique monster that the Winchesters haven't dealt with before. It would test their skills and their bond. Another could be them exploring their family histories within the hunting world more deeply, like finding out about some long - lost relatives who were also hunters.
In fanfiction, Claire can develop from being a bit of a hot - headed rebel into a more strategic hunter. For example, she might learn from her mistakes on hunts and start thinking things through more carefully. Alex, on the other hand, could develop her medical skills further within the hunting context. Maybe she starts using her knowledge to create new ways to treat hunters who get injured on the job.
One great 'Supernatural Claire Fanfiction' is 'Claire's Journey'. It beautifully explores Claire's character growth. In this fic, she goes on solo hunts and faces challenges that really show her strength. Another good one is 'Claire and the Lost Artifact' where she teams up with some new characters in the Supernatural universe to retrieve a powerful and dangerous item.
Another unique part is the friendships she forms. In the fanfiction world, Claire can befriend characters that she didn't interact much with in the show. This can lead to some really interesting team - up stories. For instance, she could form an alliance with a witch or a werewolf, and they could go on adventures together. These new relationships can change her perspective and open up new story arcs for her.
A plotline could be that Peter loses his power - absorption ability. Claire then has to step up and protect him while they search for a way to get his power back. This would put a new dynamic on their relationship as Claire is usually the one being protected. It could also lead to some character growth for Peter as he has to rely on his wits and other non - power skills.
One common theme is mentorship. Dean often takes on a mentor - like role to Claire. For example, he teaches her how to hunt monsters more effectively.
One good one could be 'Claire's Journey' where she goes on a solo hunt to prove herself. It really delves into her character growth and determination.
Character development is a key element. Claire often goes from being a somewhat lost and angry young woman to a more confident and skilled hunter. Her relationships, like with Jody and the other hunters, are also important. Another element is the Supernatural elements themselves, such as hunting monsters and dealing with the paranormal. And often, there's a sense of mystery and danger that drives the plot forward.
You can try fanfiction websites like Archive of Our Own (AO3). It has a vast collection of Supernatural fanfictions, including those about Dean and Claire. Just use the search function and type in relevant keywords.
One possible plotline could be that Alex and Mason kidnap someone for a noble cause, like to expose a corrupt organization. They might keep the victim in a hidden location while they gather evidence against the bad guys.
One unique plotline could be that Alex's pregnancy gives her new superpowers. In some fanfics, this is a really interesting take as it shows how her body's change due to pregnancy might have unexpected consequences on her abilities. It adds a whole new dimension to her character.