Anker USB-C to HDMI Adapter $12 at Amazon
Amazon with Anker Direct has the Anker USB-C to HDMI Adapter (AK-A83120A1) for $15 - $3 off with coupon code
AKUSBC45 at checkout =
$12 with free shipping on $25+ or with Prime. Supports 4K 60Hz and averages 4.6/5 stars at Amazon.
Original Source of Info