https://defed.xyz No real surprises, but the list pales compared to Lemmygrad's still, they have 3x as many defeds.
Parenti's analysis of Stalin in Blackshirts and Reds is the weakest part of an otherwise excellent book. I can't really fault him as at the time of writing, the Soviet archives had not yet been analyzed in their entirety. For a better analysis that focuses specifically on Stalin, read Domenico Losurdo's Stalin: The History and Critique of a Black Legend.