Based on this product's specifications, here are some alternatives and similar models
Clamp, Wolfcraft S 20 mm spring clamp with suction cup WF3662000
Summary description:
Mini spring clamp Wolfcraft S 20 mm (WF3662000) is a compact fastening tool with a 20 mm jaw opening and integrated suction cup for temporary holding on smooth surfaces. Designed for quick one-handed clamping of small workpieces, holding components during gluing, positioning, or light assembly tasks in woodworking, hobby and DIY projects.