Godox V860II-S Li-ion battery powered flash speedlite for Sony cameras
Amazon.com : Godox Camera Flash Speedlight V860III-S for Sony [Upgraded Li-on Battery] Compatible with Sony Digital Cameras a9 a7 a7II a7III a7R III a7RII a7SII a6000 a6300 a6500 : Electronics
VING V860IIS TTL Li-Ion Flash Kit for Sony Cameras - Allen's Camera
Godox Camera Flash Speedlight V860III-S for Sony [Upgraded Li-on Battery] Compatible with Sony Digital Cameras a9 a7 a7II a7III a7R III a7RII a7SII a6000 a6300 a6500 : Electronics - Amazon.com
Flash review: the Godox Ving V860 II is a great-value wireless solution: Digital Photography Review