It depends? Cherry MX keys have very stiff springs IMO - it's definitely an oldschool feel. Low profile keys tend to have a shorter pre-travel, and may have lower actuation force.

They aren't available on a lot of keyboards, but I'm fond of Kailh Speed Copper switches. The travel and speed needed to activate the key is comparable to that of a mid-2000s Apple keyboard, but the tactile bump is much lighter, and there's a whole lot more travel after the activation point before you bottom the key out. I find this to be really cushy; I can type lightly but quickly, with very little impact because I'm not hitting the end of the key's range of motion with any force.

That said, the annoying thing here is that it's expensive to try keys. Even when computer stores have keyboards you can try out, they usually only have the run-of-the-mill red, brown and blue switches.