There might be a fanfiction where Azuma forms an unexpected alliance with a Fairy Tail member. They could be forced to work together to overcome a common enemy. This would involve a lot of character development as they learn to trust each other despite their initial differences. Azuma's unique magic style would add an interesting dynamic to their partnership.
Power play can also be a theme. Given the magical and often hierarchical world of Fairy Tail, seeing how power differences play out in a yaoi relationship involving Azuma can be interesting. For example, one character might be more powerful magically, but the other has more emotional strength, and how they balance that in their relationship is explored.
Create an engaging plot. It could be a new adventure that Azuma embarks on, or a situation that challenges his beliefs. For example, you could put him in a situation where he has to choose between his loyalty to his own group and doing what is right. Also, introduce new characters or bring back old ones from the Fairy Tail series to interact with Azuma in interesting ways.
In some fanfictions where Erza dies, it could lead to a dark and tragic turn for the Fairy Tail guild. Her death might cause the other members to question their strength and purpose. For example, Natsu might be consumed by a desire for vengeance against the ones who caused her death.
One great aspect of Natsu and Erza fanfiction is the exploration of their unique friendship. In many stories, their different personalities - Natsu's brashness and Erza's strictness - create interesting dynamics. For example, there are fictions where they team up for a mission and Natsu's unorthodox methods initially clash with Erza's by - the - book approach, but eventually they learn to work together better, leading to a stronger bond between them.
You can try fanfiction websites like Archive of Our Own (AO3). There are often many different works related to Fairy Tail, including those involving Azuma in the yaoi genre. Just search for 'Fairy Tail Azuma Yaoi' on the site, and you'll likely find a variety of stories.
One great 'Naruto' fanfiction is 'A New Path' which explores an alternate story for Naruto. For 'Fairy Tail' and Erza, 'Erza's Redemption' is quite interesting. It delves into her past and how she overcomes certain traumas. Another 'Naruto' fanfic could be 'The Hidden Power' which gives Naruto some unique abilities not seen in the original. These fanfictions are great because they expand on the original universes and characters in creative ways.
One possible fanfiction idea could be that Erza decides to cut her hair as a symbol of a new beginning. Maybe she has just overcome a great battle or a personal struggle, and she wants to show that she is a changed person. The haircut could be a short, stylish bob that shocks her guildmates at first but then they grow to love it as it represents Erza's newfound confidence.
One great fanfic could be 'The Adventure of Natsu and Erza'. It focuses on their unique bond during a dangerous mission. They rely on each other's strengths and in the process, their relationship deepens in a very platonic yet heartwarming way.
The ghastly space in this fanfiction could be a place where Erza and Lucy are sent as part of a mission gone wrong. They find themselves in a desolate and eerie landscape filled with floating rocks and strange energy currents. Erza quickly takes charge, assessing their situation. Lucy summons some of her stronger celestial spirits like Leo the Lion to help them navigate. As they move forward, they encounter a powerful dark mage who has been causing chaos in the ghastly space. Erza and Lucy combine their attacks, with Erza using her sword magic and Lucy using her star dress form. They manage to defeat the dark mage and in the process, they become more confident in their individual powers and their partnership within the Fairy Tail guild.