Artfol https://artfol.app/
Buzzly https://buzzly.art/
Cara https://cara.app/explore
Pixel Joint https://pixeljoint.com/
Pixiv https://www.pixiv.net/en/
Toyhouse - for character designs https://toyhou.se/
ArtStation https://www.artstation.com/
Tegaki E Reboot http://te2.tewi.us/