I'm going to assume that Tableau doesn't install any fonts with their software, and that the fonts that are available in Tableau are dependent on what is installed on each of our systems. This morning I was in search of a good looking monospace font that would be commonly available on my client's systems. I came across this font matrix that shows which fonts were installed by which software on Windows and Mac OS. Thought others might find it useful:
It could use an update, but it's good start.