Padbury Clock Screensaver - Minimal screensaver for Mac
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Save Hollywood - Play movies as your screen saver
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
iScreensaver - iScreensaver is a multi-featured software that uses Image, Live Photo, Video, Movie, and 3D Model files to create screensavers for Windows and Macintosh.
LightShot - The fastest way to take a customizable screenshot.