rcmd - rcmd makes app switching instantaneous!When you have a lot of apps open, finding and switching to them might feel too slow using Command-Tab or the Dock.Hold down the right side |⌘ command| and press the first letter of the app name to focus it.

Lunar.fyi - Control monitor brightness, adapt using the ambient light sensor, adjust volume, switch inputs and turn off displays without fiddling with clunky buttons.

Charmstone - The quicker switcher launcher for macOS

DisplayBuddy - Control the real brightness of your monitors directly from your Mac - no need to touch the buttons on your Monitor.

Switch for macOS - Keyboard-driven commands to navigate your mac apps faster.

BetterDummy - BetterDummy creates a virtual display which you can utilize as a mirror main for your display on the Mac.