I think 'Atris: A New Path' is a fanfic worth checking out. In this, Atris breaks away from her traditional ways and embarks on a completely new adventure. It shows her in a different light, facing challenges that she has never faced before. It also has some great interactions with other original characters created by the author.
Sure. 'The Atris Chronicles' is a great one. It delves deep into the character of Atris in ways that are both true to the Star Wars universe and adds a lot of original elements to her story. Another good one could be 'Atris: The Lost Years' which explores her past and how she came to be the person we see in the official Star Wars lore.
Well, there's 'Atris' Redemption' fanfic. It focuses on Atris' journey towards redemption after some of the events in the Star Wars story. It has a really interesting take on her character development. Also, 'Atris and the Force Nexus' is quite engaging as it involves Atris' exploration of a mysterious Force - related location.