Here a few Shortcuts I use Daily
Command(⌘) + W----Close Tab or Window
Command(⌘) + Q----Quit Application
Command(⌘) + T----New Tab (browser or Finder
Command(⌘) + N----New Finder Window
Control(⌃) + Command(⌘) + Space----Emojis
Command (⌘) + Space----Spotlight