I read "Stories of Your Life and Others" this year and it was for me the best fiction in a few years. Cognitive sci-fi, sometimes with religious themes (e.g. what if Kabbalah were a basis for the industrial revolution).
Also, quite a few stories by Ted Chiang are available online, see links in https://en.wikipedia.org/wiki/Ted_Chiang.
EDIT: Freely accessible stories converted to mobi (the Kindle format): https://www.dropbox.com/s/wbhdyer9qfpexcm/Stories%20accessib...