A good review candidate right here...
PSA 8 1976 George Brett. One would be hard pressed to find a better looking 8; comparisons to other 8s encouraged. Looks more like an 8.5 or 9, to my eyes. Rare centering, great color, sharp corners, and none of the usual PD. $375 dlvd.
1975 Schmidt, no PD. Price is $50 dlvd.