A list of the major keycap profiles

The Major Profiles

That was a lot of info. 

Fortunately, you mainly have to remember only a select few, since not all combinations exist.

 

Cherry Profile

A fairly low-height sculpted set available in a wide variety of color schemes.
Significantly more popular than all other profiles. Very comfortable to type on.
Its name comes from the fact that this is the profile used by genuine Cherry brand boards.

  • Keytop: Cylindrical
  • Sculpt: Sculpted
  • Legends: Doubleshot, Dyesub, Blank
  • Material: ABS, PBT
  • Thickness: Thick 
  • Manufacturers: GMK, JTK, EnjoyPBT, NPKC, Cherry, etc

OEM/Filco Profile

Very common on retail keyboards.
A taller, choppier sculpt than Cherry; makes it somewhat uncomfortable to type on.

  • Keytop: Cylindrical
  • Sculpt: Sculpted
  • Legends: Doubleshot, Dyesub, Blank
  • Material: ABS, PBT
  • Thickness: Thin
  • Manufacturers: Filco, Tai-Hao, various OEMs
SA Profile

A retro-looking profile. 
Spherical and sculpted. Very tall.

  • Keytop: Spherical
  • Sculpt: Sculpted
  • Legends: Doubleshot, Dyesub, Blank
  • Material: ABS, PBT
  • Thickness: Thick 
  • Manufacturers: Signature Plastics, some third parties

DSA Profile