Well, in the best ATLA fanfic, the characters are often well - developed. They stay true to their original personalities from the show. For example, Aang's fun - loving and kind - hearted nature is enhanced, not changed. Also, a great fanfic usually has an engaging plot. It could be a new adventure for the Gaang, like exploring a hidden part of the Spirit World that was never shown in the series. And the writing style is important too. It should be easy to read and flow smoothly, making you feel like you're right there with the characters in the Avatar world.
In the light novels, there is no such plot where Atla dies. The story unfolds in a way that keeps her alive and involved in the various events and character developments. She has her own role to play throughout the narrative, and her survival is an important part of the overall story structure. So, if you were worried about her dying, you can rest easy as she remains a living character within the light novel world.
It depends on the specific light novel series. Some might have Atla survive, while others could have a different fate. You really need to check the particular story to know for certain.
To be honest, I don't have the latest update on whether Atla comics are still being produced. But you can follow some comic-related forums or social media groups dedicated to Atla to stay in the loop.
One interesting Spy x Family reaction fanfiction could be where the Forgers react to Anya getting a perfect score on a test. It's fun to see Loid's shock and Yor's pride. Another might be their reactions to a new neighbor who seems a bit suspicious. There are also fanfictions where they react to Anya's first school play.
The idea of a 'dirty fanfic' in this context is not something to be encouraged. Instead, if one is interested in the sans x chara relationship, they could write a story about how they might team up to solve a mystery in the game world. This would be a much more positive and family - friendly take on their relationship.