As a fellow Mac user, I think you’re in for a challenge finding Mac media keys from anyone but Keychron, at least from my observations. Unfortunately most keycap sets don’t even include Command or Option keys. I own one Akko ASA profile set which does include those. I’ve also seen that PBTFans sets generally include Cmd/Opt, but I don’t personally own one. Best of luck!
Sorry I didn't see this sooner. I just did the same hunt, and came to the same conclusion.
I ended up getting the PBTfans Dolch set from Divinikey which comes with a decent number of relegendable caps: I figured that way if I missed them I could make my own media keys. But I'm getting along fine without them – I've been on the Mac long enough that I'm pretty well drilled on the ones I use.
Very happy both with the caps and with Divinikeys' service. I ordered a couple of other things from them – some new switches and a better switch puller – and both orders went smoothly.