TeamViewer - TeamViewer lets you establish a connection to any PC or server within just a few seconds.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
AnyDesk - AnyDesk is the world's most comfortable remote desktop application. Access all your programs, documents and files from anywhere, without having to entrust your data to a cloud service.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
ConnectWise Control - ConnectWise Control is a mobile app that allows you to instantly connect with another system from anywhere with a connection to the internet. The software not only comes in a mobile app, but it has a desktop version as well for complete coverage.
LightShot - The fastest way to take a customizable screenshot.