iPhone Mockups by Previewed - Beautiful iPhone mockups to present your app
Device Shots - Generate high-resolution device mockups using a screenshot.
Previewed - Beautiful mockups & graphics for your next app
Facebook Design - Devices - Images and Sketch files of popular devices.
Adobe Spark Post - Adobe Spark Post is the fun and fast way to create stunning graphics for all occasions.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.