With some help from AmolShah, I was able to cobble together a script that will create an Excel file that lists the sheet numbers, titleblock family, and family type.
There’s a very helpful pyRevit tool to select them, but if you have multiple families selected, I couldn’t tell which titleblock families where on which sheets.
Of course, I’m open to suggestions on improvements or directions on how the solution was already readily and easily available elsewhere.
List Title Block Families by Sheet Excel Output.dyn (32.5 KB)