In article , nospam
wrote:

Also buy the Apple Pencil. It is a great input, and editing device.

Also on my list, but maybe not right away. There are many options for
keyboards, so that will probably be automatic.

any bluetooth keyboard will work.

i forgot to mention that usb keyboards can be used with the usb
adapter, as well as ethernet adapters and many audio devices
(microphone, keyboard, midi, etc.)

https://support.apple.com/en-us/HT202034

however, wireless is *far* more convenient for a mobile device.