A script to select AirDrop from Finder's Share menu. Assign to a keyboard shortcut for quick AirDropping
There are a couple ways to use it. You can put the script in an Automator workflow as a Service/Quick Action and set a keyboard shortcut for that Service in System Preferences > Keyboard > Shortcuts, or use a utility like FastScripts to set a shortcut for just the script itself.
Tested on macOS 10.14 Mojave, 10.15 Catalina, and 11 Big Sur.