What are some alternatives?
When comparing Marketing Inspo and Stubborn Illustrations, you can also consider the following products
Illustration Tools - Directory of tools and resources for illustrators
Evie by unDraw - MIT licensed illustrations for your next project
SaaSFrame - Browse hundreds of SaaS marketing pages, product interfaces and email flows.
DrawKit - MIT licensed SVG illustrations, in 2 styles
Blush - Illustrations for everyone
Handsome Illustrations - Create unique illustrations for websites & applications.