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.
Command-Tab Plus - Command-Tab Plus - Powerful and Customizable Applications and Windows Switcher for Mac OS X.
Charmstone - The quicker switcher launcher for macOS
SwitchGlass - Customizable app switcher for Mac
Switch for macOS - Keyboard-driven commands to navigate your mac apps faster.
SuperTab - When you press Command-Tab on your Mac, Apple provides you with a simple App Switcher: