Panasonic's DMW-SHGR1 Shooting Grip is designed to provide a stable base for your G100 camera body whilst shooting vlogs or other content.
The ergonomic design can also be used as a handgrip to make vlogging on the go easy.
It has a simple design with shutter/record/sleep buttons that do everything you'd need to capture the action at the right moment.
The grip is also compatible with the GH5S, GH5, G9, G90 and G80 (with a firmware update).