Logitech's touchpad case turns your iPad into a laptop, for a lot less than Apple's Magic Keyboard - CNET
Slim Folio Pro - Keyboard Case for iPad Pro 11-inch (4th Gen) & iPad Pro 12.9-inch (4th Gen)
Logitech Folio Touch for iPad Pro review - turn your iPad Pro into a laptop - The Gadgeteer
Logitech Combo Touch Keyword Ipad Pro 11 - Basselectronics.ca
iPad Pro keyboard shootout: $160 Logitech Folio Touch vs. $300 Apple Magic Keyboard
Buy logitech Combo Touch Bluetooth Detachable Keyboard for Apple iPad Pro 12.9 Inch (5th & 6th Gen) with Touchpad (Adjustable Kickstand, Oxford Grey) Online - Croma