I've tried a few but keep coming back to Bergger COT320. It yields best details.
Arches Platine would be nice if you can control the loss of sizing during processing.
Kozo papers have a hand-made quality suitable for pt/pd. The Goyu Kozo is difficult to work with but can yield beautiful translucent images.
Have seen some nice pt/pd images on vellum, but have yet to try that paper.
Just noticed that on the alt-photo-process-list some people are reporting issues with latest batch of COT320. Problem with all papers is that the manufacturer does on occasion make unannounced changes. So if you do find a paper that performs well, stock up.