Godox X1R-C TTL Wireless Flash Trigger Receiver for Canon - Camera Concepts & Telescope Solutions
Amazon.com : Godox X2T-S TTL Wireless Flash Trigger for Sony, Bluetooth Connection, 1/8000s HSS, 5 Separate Group Buttons, Relocated Control-Wheel, New Hotshoe Locking, New AF Assist Light : Electronics
Godox XProC TTL Wireless Flash Trigger for Canon Cameras XPROC
Godox XPro-O TTL Wireless Flash Trigger for Olympus and Panasonic
Amazon.com : GODOX XPro-C Flash Trigger Transmitter with E-TTL II 2.4G Wireless X System HSS LCD Screen Compatible for Canon DSLR Camera : Electronics
Godox XPro-N wireless flash trigger for Nikon boasts TTL, HSS and more for just $70: Digital Photography Review