Freestyle has many nice black and white papers in stock. That is about where I am on this issue, since Fuji's discontinuation cannot be far behind. I wish I had money to stock up. Kodak made the best RA paper IMHO. I stashed some Portra and Ultra when they were taken away in sheets. It won't last forever, though.
P.S. I see that Fuji's sheets have been discontinued as well...great.