New Tab by Flickr - Get a beautiful photo each time you open a new tab
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Exposure New Tab - Get a beautiful photo from Exposure in every new tab
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Less Boring New Tab - Your browser deserves a better new tab page
Splashify - Beautiful desktop wallpapers for Mac and Windows