AliExpress is your friend. Also there are great options on Amazon, depending on your location.

Why not use a mech at work? Because it’s too loud?

I grew up with DE ISO and switched to US ANSI with EurKey a few years ago. ANSI is so much better for programming!

Also more options for key caps.

Cracking down on account sharing has sent lots of people sailing as well, and market fragmentation.