For me QEMU works very well for running OS9 on a contemporary mac. I don’t use it heavily so I can’t promise that it’s glitch free, but I’d recommend trying it

For me QEMU works very well for running OS9 on a contemporary mac. I don’t use it heavily so I can’t promise that it’s glitch free, but I’d recommend trying it before seeking out old hardware, unless you particularly want to run old hardware.