Can my iPad pro 10.5 have a keyboard?

What sort/kind of keyboard?

Any iPad can use any type of separate external Bluetooth keyboard.

There is an Apple keyboard cover for the 10.2 and 10.5 inch screen iPads.

There is a laptop/MacBook style keyboard for the 10.2 and 10.5 inch screen iPads from a keyboard company called Brydge.

Logitech has a brand new trackpad keyboard for the 10.2 and 10.5 inch screen iPad models, as well!

Plenty of options for external keyboards for your iPad model.