WinMoji is an open-source tool which makes it easier to find and use the built-in Windows emojis. "What emojis?", you're asking? Then maybe this is a program you need.
Install and run the program and it displays the full set of emojis in a single box. No need to mess around with on-screen keyboards, they're all immediately ready to use.
If you see an emoji you like, click it and it's copied to the clipboard.
Alternatively, just start typing a descriptive keyword and the emoji list updated with every character to show matches. Try "pig", "Santa", "car", "smile", and so on.