Live - Throwing Copper. For a band that largely underwhelmed there after, this album is quite possibly near flawless. No less than 5 high end radio songs and every track listens good.
The Offspring - Smash. Highest selling independent album of all time. Nearly perfected radio friendly punk songs before that became a thing. The big 3 are huge here (Come Out and Play, Self Esteem, and Gotta Get Away). Zero filler and even a fun Ska song.
Black Sabbath - Paranoid. The fathers of heavy metal, hard rock, alt rock, everything heavy. War Pigs is epic. Planet Caravan was trippy and prog. Everybody has head banged and air guitared to Iron Man. Paranoid was meant to be filler and turns out to be one of Iommi's best, memorable riffs.