They're SA keycaps with HiPro style scoops.
I hate MT3 to type on - the tops are so small that the sharp edges are constantly bashing on my fingertips. But MG has the same nice big top area as SA, so I can actually feel the scoop.
GMKY do "AF SA" keycaps which are identical quality, colour and finish, with the same profile, sculpt and scoop, but 2mm shorter. The AF SA caps are 1/4 the cost of MG, so they're a cheap way of getting a good HiPro style scoop, or 'improving' an MG set (e.g. I mixed MG and AFSA rows to get a profile I'm happy with).
Colour-wise, you can check the Melgeek website, or go to AliExpress and do a search for "af sa keycaps" and click on the 1st link. The description has lots of big pictures of the colourways (but with different names).