$14 $20
Amazon with VicTsingDirect has the VicTsing AV-1418 Wireless Keyboard & Mouse for $20 - $6 off with coupon code AJ4LE4OY at checkout = $14 with free shipping on $25+ or with Prime.
Amazon with VicTsingDirect has the VicTsing Quiet 2.4GHz USB Wireless Rechargeable Full Size Computer Keyboard with Numeric Keypad for $25.99 - 60% off with code LZAG2GFB at checkout = $10.40 with free shipping on $25+ or with Prime.
Amazon with Duolihui US has the Jelly Comb Multi-Device Dual Mode (BT4.2+BT4.2+2.4G) Rechargeable 2.4G Wireless Bluetooth Keyboard for $30 - 50% off coupon (check "Apply coupon" box) = $15 with free shipping on $25+ or with Prime.
Backordered until April but available for purchase at the discounted price... Today only. Amazon has the HyperX Alloy Origins Core Tenkeyless Mechanical RGB LED Backlit Gaming Keyboard (Tactile HyperX Aqua Switch, HX-KB7AQX-US) on sale for $65 with free shipping.