I'm a late-comer to the Red River range of papers. For years I thought it had to be Canson or Hahnemuhle for my premium printing.
Wrong!! - Many of them are the exact same papers, (see Spectrum-Viz plots, and discover the re-branding/ re-packaging of an identical product!)
Red River has a huge range, and prices are 20/25% less. Good quick shipping too.
Someone there knows what they are doing, and its great to see.
I have no affiliation to them whatsoever. Just annoyed I was a paper snob, and didn't investigate sooner!