Well..... I have several that I can mention.
But the BEST EVER Stevie Wonder Album in MY opinion is:
(01). Songs In The Key Of Life (1976).
Strong Second is:
(01). Innervisions (1973).
Third Place is:
(01). Talking Book (1972).
And the Honorable Mentions (and in NO particular order) are:
(01). The Original Musicquarim (1982 -- a collaboration of his best work from the 1970's, plus an introduction to new classics -- namely "That Girl", "Ribbon In The Sky" and "Do I Do").
(02). Hotter Than July (1980).
(03). In Square Circle (1985).
(04). The Woman In Red (1984 -- this showed that Stevie Wonder can also sing a duet. He most of the songs on this soundtrack album to this 1984 movie with Dionne Warrick, which later led to a duet with Whitney Houston on her "I'm Your Baby Tonight" album).
That's pretty much it.....
I got most of these albums on CD (when I started assembling my first audio system in the early 1980's, now, I also have many of these on vinyl as well).
--Charles--