This is the one I'm (roughly) following:
Welcome To The Cosmere: A Brandon Sanderson Reading Order Guide
The Quill To Live's official Cosmere reading order guide has arrived! Now including Brandon Sanderson's The Sunlit Man!
thequilltolive.com
I'm listening to the audiobooks. Since the end of November I've gone through the first Mistborn trilogy (AMAZING), Warbreaker (took a while to get into, but also great - I loved the magic system in this), and today I've finished The Way of Kings (45 hours of audio for just that book!). I'm going straight on to Words of Radiance now as I'm hooked!