I'll keep this brief since the source list is relatively brief. The main three books I recommend as supplemental reading for this episode of History Impossible are as follows:
Norman F. Cantor, In the Wake of the Plague: The Black Death and the World It Made, 2001.
Philip Ziegler, The Black Death, 1991.
Nicholas A. Christakis, Apollo's Arrow: The Profound and Enduring Impact of Coronavirus on the Way We Live, 2020.
There are other pieces of scientific literature from which I quoted and used as research, so please feel free to reach out if you're curious about taking a look at those. Thanks!