This is a minimal, but sturdy, stand/display for Mechanical Keyboards. It should fit any sized keyboard well and is plenty sturdy, even with PLA.
A friend of mine asked me to print a keyboard stand for them in a stronger material because the ones they were gifted kept breaking. I found that the issue wasn't because the PLA was weak but because the design was flimsy so I designed a new stand for them that is much more sturdy while still being printed in PLA. I hope this design works well for you too!
The keyboard in the image was a gift from a friend, the NK65 Olivia Edition.