H A N D Z - Free 3D illustrations of diverse hands gestures
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Characterz - Biggest diverse mix and match 3D illustration library
Invision - Prototyping and collaboration for design teams
Khagwal 3D Illustration Library - Free 3D illustration library for web & mobile app designers
Sketch - Professional digital design for Mac.