Based on this product's specifications, here are some alternatives and similar models
Pistol Grip for SUNMI L2s L2H L2sPro
Summary description:
Pistol grip designed for SUNMI handheld devices compatible with L2s, L2H and L2sPro models. Provides an ergonomic handle for improved one-handed operation, easier aiming and stable scanning or data capture in retail, warehousing and logistics. Simple attach/detach mounting keeps device accessible while reducing operator fatigue during prolonged use.