Signature Plastics/Pimp My Keyboard DSA has been available in both ABS and PBT. If it has vibrant colours, it is most often double-shot ABS. PBT keys are almost only printed with darker colours on top of bright plastic.
Signature Plastics has also made
DCS profile, which is somewhat grittier and close to Cherry profile in size.
But the bottom rows are more angled than Cherry profile and the keys are thin and almost always in ABS.
I like the MT3 PBT sets from Massdrop. Texture to me feels reminiscent of the original IBM PBT caps, and the spherical profile is really nice, IMO.
I find the key surface to be too small and dished for my fingers. I feel the edges of the keycaps but not the middle.