Just so to let you know! For Platinum Printers especially . I have used the paper called Stonehenge from Blick Art. The paper is pretty thick 90 gsm, easy to coat even my lab humidity at low as 35 with no humidifier required
The paper yield a very nice soft look, nice D max and certainly difference from any other paper that I have used including Weston, Crane or Arche Platine.
It come in several shades but my favorite are Warm White and Natural. Size 22x30 for less $2/ sheet. For more details please follow this link:
Here's a sample: