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
Ouch! Illustrations by Icons8 - Professional, perfectly matching, and customizable illustrations for any designs
Evie by unDraw - MIT licensed illustrations for your next project
Struct Illustrations - Create your own unique story with editable illustrations