Humaaans - Mix-&-match illustrations of humans with a design library.
Open Peeps - A hand-drawn illustration library.
Avataaars Generator - A simple avatar generator
Ouch! Illustrations by Icons8 - Professional, perfectly matching, and customizable illustrations for any designs
AVATARZ - Lovely library of diverse 3D avatars
Toy Faces Library - A fun diverse library of 3D avatars for your design mockups.