If you want to get more out of your USB-C port, this adapter could be just what you need.
The adapter adds HDMI and USB 3.0 connections to a USB-C port. It's an alternative to the $60 Satechi Slim Aluminum Type-C Multi-Port Adapter, and at $30 it does the same thing for half the price.
It only has one USB 3.0 port (the Satechi has two) but its included USB-C port can be used for both pass-through charging and data connection. The adapter is available in only one color, unlike the Satechi, which has matching colors with Mac notebooks. It's also rather bulky and doesn't feel as solid as the Satechi.
Still, it gets the job done. If you need to quickly connect your new Mac notebooks to a big screen, this is an easy recommendation.