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.
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.
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.
A plot idea could be that their family goes on a journey to find a long - lost magical tome that Levy has always dreamed of reading. Along the way, they face various challenges like bandits and magical traps. Gajeel uses his combat skills to fend off threats, and Levy uses her knowledge to solve the puzzles.
Well, here's another plot. Levy starts training with a very skilled mage who is known for his gentle teaching methods. Gajeel is jealous because he feels like he should be the one teaching Levy. So, he challenges the other mage to a friendly duel. Levy is angry at Gajeel at first for being so possessive, but later she understands that it's his way of showing his care for her. During the duel, Gajeel realizes that the other mage is not a threat to his relationship with Levy and they all become friends in the end.
A possible plot could be that Gajeel and Levy go on a journey to find a special place to raise their child. Along the way, they encounter old enemies who now see the pregnant Levy as an easy target. But they fight together, with Gajeel being extra protective. Also, they could have different ideas about parenting. Levy might want a more studious and peaceful upbringing for the baby, while Gajeel wants to train the baby to be tough from a young age. They then have to find a middle ground.
One idea could be that Levy discovers she's pregnant during a big guild mission. This could add a whole new layer of tension as Gajeel becomes overly protective. Maybe they have to face an enemy who specifically targets Levy because of her pregnancy. Another plot could involve Levy struggling with the changes in her body and magic while pregnant, and Gajeel having to learn how to support her in ways he never thought possible.
Perhaps there's a fanfiction where Levy is praised for her intelligence in front of the whole guild by an elder mage. Gajeel, feeling a bit inferior in that aspect, gets jealous. He starts to study more magic theory secretly to impress Levy. Along the way, there are cute moments where he tries to ask Levy for help without admitting his real motive, and it all builds up to a heartwarming moment between them.
A lemon fanfic about Gajeel and Levy in Fairy Tail often explores their relationship in a more romantic or spicy way. It might include their growing feelings for each other, with some added elements of passion. However, it's important to note that such fanfics are not part of the official canon.
In a Gajeel and Levy family fanfiction, it could be about how they handle family traditions. Levy might be from a family with a strong tradition of book - keeping magic knowledge. She could be trying to pass this on to their children, while Gajeel, with his more rough - around - the - edges background, has to adjust to these new family values.