I use mostly Whitman Albums for everything. No idea if they make addtional pages for Albums though since all my Albums are almost as old as the Egyptian Pyramids, slight exageration. What I do with all my Albums is to order blank pages from Whitman or any dealer that may have blank pages.
Whitman makes blank pabes for all their Albums. On the Nickel ones it only says Nickels at the top of the page.
A long time ago I ordered many of their press on Gold type letters/numbers and add info as necessary.
As an example this is what I did for my
Lincoln Cent Albums to compensate for all the 2009 Cents.

They didn't have anything that said Plated so I just used Clad. I know what I ment so that is all I care about.