Well, there are two contenders in this space (based on the information I've gathered over time) and those are the Dell XPS 13, and the Thinkpad X1 Carbon. You

Well, there are two contenders in this space (based on the information I've gathered over time) and those are the Dell XPS 13, and the Thinkpad X1 Carbon. You can also look into HP as they've been known for being quite linux friendly. Hope this helps.