Aukey USB C Hub
If you want to connect multiple items to your 2016 MacBook Pro without hauling around a trio of adapters you can pick up this single adapter to keep in your bag.
With the Aukey USB C Hub you get four USB 3.0 ports that will allow you to plug in your iPhone, flash drives and other devices to the MacBook Pro. You also get a HDMI port so you can connect your computer to a monitor or projector at the same time.
Finally, there is a USB C port so that you can charge your MacBook Pro while using the adapter even if your other ports are occupied.