I would say GZA's album is good as well but it hasn't/doesn't got much replay from me over the decades, other than OC's "Jewelz" & Busta's second album all the other albums I don't think I've listened to in a long time.

A few other albums from a solo artist not mentioned above that had a good sophomore album are: Jeru The Damaja "Wrath Of The Math", Erick Sermon "Double Or Nothing", Grand Puba "2000", and Godfather Don "Diabolique".