What are some alternatives?
When comparing Glaze and Stubborn Illustrations, you can also consider the following products
Freepik - More than a million free vectors, PSD, photos and free icons. Exclusive freebies and all graphic resources that you need for your projects
Evie by unDraw - MIT licensed illustrations for your next project
Deep Art Effects - Deep Art Effects transforms your photos and videos into works of neural art using artistic style transfer of famous artists.
DrawKit - MIT licensed SVG illustrations, in 2 styles
Vecteezy - Free Vector Art - Vecteezy is a HUGE collection of free vector art, vector graphics, illustrator brushes, Vector Wallpaper Backgrounds, Silhouettes and more!
Handsome Illustrations - Create unique illustrations for websites & applications.