One interesting plot would be if there is a prophecy about a blue - haired couple (Levy and Gajeel) saving the Fairy Tail guild from a great danger. They initially don't believe it, but as signs start to appear, they start to train together to be able to face this threat. Their relationship develops from being comrades to something more as they work towards fulfilling the prophecy.
There could be a fanfiction where Gajeel is turned into a blue dragon temporarily. Levy has to take care of him in this state. It would be a cute and funny story as Gajeel tries to communicate in his dragon form and Levy tries to understand him. Also, they might face some threats from those who want to capture the blue dragon.
Perhaps a fanfiction where Gajeel is cursed with a blue mark that slowly drains his energy. Levy, being the studious mage she is, devotes all her time to finding a cure. Along the way, they have to face many enemies who are after Gajeel's power. Their love and friendship are put to the test as they struggle to break the curse.
One interesting plot could be their honeymoon adventures. Maybe they go to a magical island where they encounter new magical creatures that Levy has only read about in books. They could have to use Gajeel's strength and Levy's intelligence to overcome the challenges there.
There's 'A New Chapter for Gajeel and Levy'. This fanfic focuses on their post - series life. It shows how they grow as a couple and face new challenges together. It also includes some really cool action scenes where Gajeel and Levy team up against new threats.
In many fanfictions, a common storyline is Gajeel finally confessing his feelings to Levy. It could be a really heart - warming moment, especially after a lot of build - up where they've been friends for a long time but both have unspoken feelings. Sometimes, there are also stories where they get into an argument that tests their relationship, but they always come out stronger in the end.
One popular storyline is where Levy and Gajeel go on a dangerous mission together. They face powerful enemies and have to rely on each other's strengths. Their relationship deepens as they overcome challenges. Another is a more comical one where they try to adapt to living together in the guild hall and all the chaos that ensues.
I recommend 'Gajeel and Levy: A New Chapter'. This fanfiction takes place after a big event in the Fairy Tail world. It shows how they start a new phase in their relationship, like moving in together or starting a joint project within the guild. 'The Levy - Gajeel Love Story' is also quite good. It's a more traditional love story - type of fanfiction that details their courtship and how they deal with the opinions of their friends in the guild. And 'Gajeel's Protection of Levy' is a fanfiction that emphasizes Gajeel's protective side towards Levy. It has some exciting plot twists where Gajeel has to save Levy from various threats.
In fanfiction, Gajeel and Levy's love is often depicted as a slow - burn relationship. Gajeel's rough exterior gradually softens as he gets closer to Levy. Their shared experiences in Fairy Tail, like going on missions together, create a bond. Levy, with her intelligence and kind heart, sees past Gajeel's tough facade. In many fanfictions, their love story is filled with moments of mutual understanding and support.
Some fanfictions focus on how Levy helps Gajeel with his reading and writing skills. This creates a bond between them as she patiently teaches him and he gradually opens up more. It's really sweet to see how their relationship evolves from there. Also, there are stories where they get into an argument and then have to make up, which shows the ups and downs of their relationship and makes it more realistic.
One interesting story could be where Gajeel and Levy are adjusting to life with a new baby. The baby might inherit Gajeel's tough exterior but also Levy's intelligence. For example, in the fanfic, the baby shows an early aptitude for magic, which surprises everyone in the Fairy Tail guild. It could also explore how they handle the challenges of parenting while still being part of the guild and going on missions.
One popular storyline could be a situation where Gajeel and Levy are on a dangerous mission together. In the heat of the moment, to comfort each other or as a sign of their growing closeness, they share a kiss. Maybe they are facing a powerful enemy and think they might not make it out alive, so they finally admit their feelings through that kiss.