I am looking for a paper recommendation for a book that uses risograph printing (first) for spot color, then letterpress printing (second) for the words. Is there a specific paper that will hold up nicely to both processes? Thanks in advance for your help.

Stonehenge performs very well with risograph printing and letterpress. However, the 250gsm paper is at the upper end of the paper weight that most Riso machines accept, but this extra heft makes for beautiful letterpress impressions.

https://legionpaper.com/stonehenge/