Printer for IMAC Monterey 12.1

There are many many laser printers that work on Monterey. By the way if you are still on 12.1, you should update to 12.4 which is the current releaser of Monterey.

Personally I have had great luck with our Brother AIO color laser, however as you did not indicate any of your needs it's impossible to refer you to something. What I'd recommend before asking about brands and models is to do your own due diligence to determine what your printing needs entail including, color, scanning needs, copying needs, volume of monthly printing etc. and then begin looking at all the various printers available in your area. There are lots of choices as EVERYONE has different needs!!!!

The current version of Monterey is 12.4 which has the latest security updates, is there a special reason for using 12.1?

I have a Samsung M2020 which has worked with all versions of Monterey using the Samsung Universal Driver.

Any AirPrint compatible will work, though many non-airprint will work too. I have an HP Envy color inkjet and an HP laser printer that work fine.