OWC Thunderbolt 3 Dock Now Available for Ordering
See also Thunderbolt 3 and USB-C Infographic and OWC Now Has Thunderbolt 3 Cables.
The about $299 OWC Thunderbolt 3 Dock has five USB 3.1 gen 1 ports, and all the others.
See my review of the OWC Thunderbolt 3 Dock as well as Connecting a Dual-Link DVI-D Display to new Macs with Thunderbolt 3 / USB-C.
Also, its 135-watt power supply can charge the 2016 MacBook Pro at 60 watts even if there is full power draw on all its ports while charging. The Apple charger brick can be set aside as a spare.
Have a display that needs connecting? See Reader Question: Connecting a Dual-Link DVI-D Display to new Macs with Thunderbolt 3 / USB-C.
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Separately, OWC has some good end of summer deals.