Ink2Go - Ink2Go is an extremely simple yet powerful screen annotation and recording software.

MWSnap - MWSnap is basically a free to use Windows snapping tools that are used for snapping any part of the screen that is currently displaying on the front of all opened programs and windows.

Epic Pen - A windows tool for drawing over your desktop and applications

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.

Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image