Wisdo - Learn from people who’ve been there
Placemat - Pretty nice placeholder images.
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
PlaceKitten - Dead-easy placeholder images. Of kittens.
Lorem Picsum - Lorem Ipsum... but for photos
placeholder.pics - Lightest way to include placeholder images in your design