You can try fanfiction.net. It has a large collection of various fanfictions, and there's a good chance you'll find some great kira x malia ones there.
A popular one is 'Kira x Malia: Unlikely Allies'. In this story, they start as enemies but gradually realize they have more in common than they thought and form a deep connection. It delves into their character development really well.
A popular 'Scott x Malia fanfiction' is 'Malia's Choice'. In this story, Malia has to make a difficult decision that could change her relationship with Scott forever. It's a very engaging read as it keeps you on the edge of your seat wondering what she'll choose and how it will impact their bond.
One common theme is the discovery of love. Since Malia has a complex backstory in the show, often in fanfiction, the reader character helps her further understand her emotions and they fall in love. Another theme is acceptance. Malia being a werecoyote, the fanfictions might deal with the reader accepting her for who she is.
One common theme is adventure. Given that both characters might be from action - filled universes, they often go on adventures together in fanfictions. For example, they could be on a quest to save their world or a particular place within it.
A common theme is friendship. Given their different backgrounds and abilities, they often start as strangers and develop a deep friendship through shared experiences. Another theme is power. They both have unique powers, and fanfictions often explore how they combine or contrast their powers.
One great kira x ichigo fanfiction is 'The Bond Beyond Worlds'. It beautifully weaves their characters together in an adventure that spans different dimensions. The author does an excellent job of capturing the essence of both kira and ichigo, and the story has a great pacing with lots of exciting moments.
A good Hisagi x Kira fanfiction often has well - developed characters. It should stay true to the personalities of Hisagi and Kira as they are in the original Bleach series. For example, Hisagi's cool and somewhat mysterious demeanor and Kira's more reserved and introspective nature should be reflected in their actions and dialogues within the fanfiction.
In Conner x Kira fanfiction, a common theme is the power of teamwork. Since they are often in a situation where they need to rely on each other's skills, it becomes a central part of their relationship in the stories. Another theme that frequently shows up is redemption. Maybe one of them has made a mistake in the past and the other helps them to redeem themselves. Additionally, there are themes related to family and how their relationship affects or is affected by their families. For instance, their families might have different views on their relationship, which creates some interesting plot twists.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of 'Scott x Malia fanfiction' with different themes and writing styles. Just search for their names and you'll get a list of relevant stories.