Ouch! Illustrations by Icons8 - Professional, perfectly matching, and customizable illustrations for any designs
Humaaans - Mix-&-match illustrations of humans with a design library.
Control Illustrations - 108 free flat illustrations with customizable characters
DrawKit - MIT licensed SVG illustrations, in 2 styles
Struct Illustrations - Create your own unique story with editable illustrations
unDraw - Open-source illustrations for every project you can imagine and create.