GM Authority composed an excellent guide to the seat options available in the 2020 Corvette. I'll post some highlights below.
Correction from info in the article:
A customer has brought to my attention an error in the article:
If you order a 2LT, you get heated and ventilated seats...
I am thinking of putting C5,C6, or C7 seats in my restoration. Just putting a feeler out to see if anyone has some for sale. Would need to be mostly black or all black.