Black Sabbath is definitely a band that has to be done.
Here's a clear list of my favorites:
1.
Vol. 4.
Key Songs: "Wheels Of Confusion The Straightener", "Tomorrow's Dream", "Supernaut", "Snowblind", "Cornucopia" and "Under The Sun Every Day Comes And Goes."
2.
Master Of Reality.
Key Songs: "Sweet Leaf", "Children Of The Grave", "Lord Of This World" and "Into The Void."
3.
Sabotage.
Key Songs: "Hole In The Sky", "Symptom Of The Universe" and "The Thrill Of It All."
4.
Paranoid.
Key Songs: "War Pigs/Luke's Wall", "Electric Funeral", "Hand Of Doom" and "Jack The Stripper/Fairies Wear Boots."
*Of course their are other "hits" on this album, but, honestly, who hasn't already heard (of) those songs 50 million times already...lol?*