In some fanfiction, Finn joining Glee could lead to a love triangle that was not explored in the original. For example, he could be caught between two characters who both have strong feelings for him. This would create a lot of emotional turmoil and interesting character dynamics as he tries to figure out his feelings while also dealing with the pressures of the Glee club.
One idea could be that Finn has a hidden talent for songwriting that he discovers while in the Glee Club. Another could be that he has to overcome some initial shyness about performing in front of others. Or perhaps he forms a special bond with one of the other members that helps him grow as a person and a performer.
One idea could be Finn getting a bad case of the flu right before a big performance. His friends in Glee club would then have to figure out how to cover for him or help him get better in time. Another could be that Finn has an ongoing illness that he's been hiding from the club, and it finally starts to affect his ability to participate fully. Maybe he faints during a rehearsal, and then everyone rallies around him to support him through his sickness.
Another option is Tumblr. There are often fanfiction writers who post their works or at least talk about and recommend good Glee fanfictions, including ones related to Finn joining the Glee club. You can follow relevant Glee tags and look for posts about fanfiction.
Kurt could be a great best friend for Finn in the fanfiction. They have different personalities but could learn a lot from each other. Kurt could introduce Finn to new styles of music and performance, and Finn could help Kurt be more confident in his own abilities. They could bond over their shared love for the Glee Club.
One possible plotline could be how Rachel and Finn deal with the reactions of their friends and family. Their friends in Glee club might be shocked at first but then rally around them for support.
A really cool idea for a fanfiction could be that Rachel and Finn swap personalities for a day. Finn suddenly becomes super - focused on his Broadway dreams like Rachel, and Rachel has to deal with Finn's more laid - back attitude towards things. It would be a humorous and also a great way to explore their relationship from a different perspective.
One popular story might be one that focuses on how the other characters in 'Glee' deal with Finn's death on an emotional level. They could be struggling to come to terms with the loss and how it affects their performances and relationships within the glee club.
One great 'glee finn and quinn fanfiction' story could be one where they reconcile after a big fight. It might explore their complex relationship and how they grow together.
Perhaps in the fanfiction, Finn and Puck find themselves in an alternate universe where being gay is the norm in the glee club. This allows them to freely explore their relationship without the fear of judgment. They could then face the challenge of how to bring this new - found confidence back to their original world.
One possible plotline could be Santana's journey of self - acceptance after being outed. Finn's actions might lead to a rift in their friendship at first. Then Santana could start to find her own voice within the Glee club, standing up not only for herself but also for other members who might be facing similar issues. For example, she could use her new - found visibility to advocate for more inclusive song choices in the club.