Many new sorghum hybrinds and crosses have appeared on the market recently. Here's an evaluation of the newer sorghums plus management suggestions if you're planning to try some of them.
Schaller, F. W. and Harris, Michael W.
"Another Look at Sorghums - Old and New,"
Iowa Farm Science: Vol. 19
, Article 4.
Available at: https://lib.dr.iastate.edu/farmscience/vol19/iss11/4