Is it possible to turn down the brightness of an external monitor via controls on mu Mac?

When using my old Thunderbolt monitor I loved that I could turn down the brightness from my Mac keyboard, but on the 2 new monitors I've bought recently, I can only turn down the brightness using their clunky on-monitor system. Are there any 3rd party monitors that: 1) Ideally can turn down the brightness via software controls on the Mac or 2) Have *Very* easy to use and accessible brightness buttons on them?