Typing on my Android Device directly from Windows 10

You should try Remote Keyboard, available for Android 2.3+.

That app worked well with my Windows 10 computer and my OnePlus 3T, and you can try this tutorial which shows you how to use the app.

If you don't like this app or if it's not working with your phone, you can try this one : https://play.google.com/store/apps/details?id=com.volosyukivan

Or, as @A bochur said, you can use an OTG wire.