Satechi's popular aluminum backlit keyboards for Mac on sale from $60, more starting at $25
Amazon.com: Satechi Aluminum USB Wired Keyboard with Numeric Keypad - Compatible with iMac Pro, iMac, 2018 Mac Mini, 2018 MacBook Pro/Air and MacOS Devices (English, Space Gray) : Electronics
Best Buy: Satechi Full-size Wired Scissor USB Keyboard w/Numeric Keypad for iMac Pro iMac 2018 Mac Mini/MacBook Pro/Air and MacOS Devices Space Gray ST-AMWKM
Aluminum Bluetooth Keyboard - Satechi
Satechi Launches New Wired and Wireless Aluminum Keyboards Designed for iMac and iMac Pro - MacRumors