This post is a link to a google workbook for Star Wars Outlaws that has a worksheet that lists out all of the Treasures that I’ve found so far in the game and how to get at them. Both on planet and in space treasures are listed along with the treasure chest contents. Note that as of October, 2024 I’ve moved on so the list isn’t 100%, but hopefully it can still be helpful. 🙂
The google workbook can be found here. If you can’t access it please leave a comment because it means the settings are wrong.