There are some fanfictions that deal with Gust's relationships in Portia. For example, how he interacts with the other characters, like building friendships or rivalries. These can be really engaging as they show a different side of his character.
Some of the best 'My Time at Portia Gust Fanfiction' are those that give Gust new skills or abilities not seen in the original game. It could be something like a special power to communicate with the ancient relics, which makes for a very unique and exciting read.
Sure. One interesting piece might be the ones that focus on Gust's adventures in exploring the far - off areas around Portia. They often add a lot of mystery and excitement to the story.