I found a mini-keyboard from dealnews.com for $20 with multicolor LEDs, that seems reliable. I found another at Best Buy with red LEDs, but otherwise similar,

I found a mini-keyboard from dealnews.com for $20 with multicolor LEDs, that seems reliable. I found another at Best Buy with red LEDs, but otherwise similar, and I gave it to my coworker. He wore all the letters off the keycaps before he retired and took it home, but it was otherwise reliable. I think these were both blue switch-based. Several genuine Cherry keyboards were in the e-waste pile at work, so I rescued them. I am using one on a test PC with rhel8. https://www.dealnews.com/Redragon-S107-BA-Gaming-Keyboard-and-Mouse-Combo-for-27-free-shipping-w-35/21787178.html https://www.dealnews.com/Redragon-S107-BA-Gaming-Keyboard-an... https://www.dealnews.com/Aula-F75-Gaming-Mechanical-Keyboard-for-35-free-shipping/21787020.html https://www.dealnews.com/Aula-F75-Gaming-Mechanical-Keyboard... https://www.dealnews.com/K4-RGB-Tenkeyless-Mechanical-Gaming-Keyboard-for-25-free-shipping-w-Prime/21784442.html https://www.dealnews.com/K4-RGB-Tenkeyless-Mechanical-Gaming... I wish that Cherry could get a cut of these.