USB-C to USB-A dongle, then USB-A to Ethernet dongle.
Or like the fanboys on the Apple subreddit have pointed out, "who the hell uses wires in 2016". Not sure if certain people are complete apologists or simply out of touch with the real world.
Eight or nine years ago, I conceived a plan that I was going to have CAT-5 run through my house someday, once I found someone to do it. Here it is 2016, I have trade workers throughout my house doing a renovation and I won't bother. I'm not sure why I'm going to the trouble of bringing indoors the twisted pairs of the phone jacks so I can use POTS from every room. Everything I have, as a 57-yo fuddy-duddy, is wireless.