Targus VersaLink USB-C and Thunderbolt 3 Dual 4K Video Dock (DSU400US)
Amazon.com: Targus VersaLink USB-C and Thunderbolt 3 Dual 4K Video Dock (DSU400US) : Electronics
VersaLink™ Dual HD Video Universal Dock | TARGUS
Amazon.com: Targus USB C Docking Station Dual Monitor, VersaLink Dual HD Video Universal Docking Station, HDMI Docking Station, USB C Laptop Docking Station, Laptop Dock for Windows Mac Chromebook (DSU300US) : Electronics
Best Buy: Targus VersaLink Thunderbolt 3/USB Type C Docking Station Black DSU400US
Targus USB-C Multi-Function DisplayPort Alt. Mode Triple Video - docking station - USB-C - HDMI, 2 x DP - GigE - TAA - DOCK430USZ - Docking Stations & Port Replicators - CDW.com
Targus' Thunderbolt 3 Dock can drive two 4K monitors and packs plenty of I/O at $195 (35% off)