ASUS 27" 1080P Monitor (VA27DCP) - Full HD, IPS, 75Hz, USB-C 65W Power Delivery, Speakers, Adaptive-Sync/FreeSync, Eye Care, Low Blue Light, Flicker Free, VESA Mountable, Frameless, HDMI - Newegg.com
LG 24" Class Full HD IPS LED Monitor with AMD FreeSync (23.8" Diagonal) + Cleaning Kit + HDMI-to-USB-C Thunderbolt 3 Adapter Cable + 2 Year Extended Warranty - Walmart.com
Does G-Sync and FreeSync work with USB-C? Yes, but it's complicated - Game News 24
Dell 24" IPS LED FHD FreeSync USB-C S2422HZ Monitor Review » Technically Well
Buy USB-C Portable Monitor - 15.6 Inch FHD HDR FreeSync Zero Frame USB-C Computer Display with Dual Type-C Mini HDMI for Laptop PC Phone Mac Surface Xbox PS4 Switch, with Smart Cover