Welcome and say bye-bye to your wallet!
Some comments from a fellow Mac-user:
I have the KUL ES-87 with Cherry Blue. Works great with the Mac and all the nifty bits (where Apple uses the function keys) do work; the KUL has a dip-switch for Mac layout. However, I left it in "normal" mode which makes life for me easier when switching between macOS & Win. I.e. ALT is next to the space bar and you need to use the Fn key to activcate Apple functions (screen brightness, multimedia, ...).
Also, I have a Pok3r with Cherry Brown, that works good on the Mac. Once you get used to their keyboard layout and multimedia controls, that works like a blast as well.