Corsair K65 RGB Mini
I think this is one of the best keyboards to improve VIM skills.
Keyboards
8Bitdo Retro Mechanical Keyboard
You can feel the aura of the golden age of the computing by using this nintendo like looking keyboard. It has also dual super buttons which is programmable for any action.
CharaChorder One
On some YouTube videos people are reaching to 300bpm with this chorded keyboard. CharaChorder One features the first ever layout designed for both character entry and chorded entry, as well as 3-D switches rather than traditional 1-D keyboard switches.
XVX Retro 75% Gaming Keyboard with OLED Display & Knob
This keyboard looks and sound great. Its smart OLED color display and customizable knob design empower you to effortlessly control your development environment. Enjoy a unique typing feel with silencing installation and hot-swappable pre-lubed custom switches, while unleashing your coding creativity with 19 RGB backlight modes and customizable settings.
KZZI K75 PRO RGB 75% Wireless Gasket Mechanical Keyboard
Meet the K75 PRO Gasket Keyboard: Innovative Gasket Mount Structure for a softer, comfortable typing feel and pleasing acoustics. Versatile connectivity with USB Type-C, 2.4GHz, and Bluetooth 5.0 modes. Enjoy premium hot-swappable switches, long battery life, and customizable RGB backlighting. Compact design, extra hub ports, and programmable software support for your convenience.