For LPs these are all good (though not heard the Kiddus I or Boothe LPs, still on my wants list):
- Burning Spear - Marcus Garvey (1976)
- Burning Spear - Garvey's Ghost (1976)
- Burning Spear - Harder Than The Best (compilation of recordings from 1975–1977)
- Burning Spear - Man in the Hills (1976)
- Justin Hinds & the Dominoes - Jezebel (1976)
- Justin Hinds - Just in Time (1978)
- Kiddus I - Graduation in Zion (compilation 1978–1980) - produced some tracks
- Ken Boothe & Tyrone Taylor - Two of a Kind (1987)
- Various Artists - Black Slavery Days (The Sound of St. Ann's) (recorded 1975, released 1981)
- Various Artists - Jack Ruby Hi Fi (1981)
- Various Artists - Jack Ruby Presents the Black Foundation (compilation of 1970s recordings)
- King Tubby & Errol Thompson - The Black Foundation in Dub (dubs of the above album)
On 45 there are loads of great tunes, many on Island or his own Wolf & Fox labels.
Spect you know the Spear stuff. I'd start with Black Slavery Days, an LP I play all the time
Then Jack Ruby HiFi. The Black Foundation LPs should still be widely available, the rest a bit trickier.