All that type of baryta papers are gone. Canosn Infinity Baryta Photographique, Hahnemuhle Photo Silk Baryta, Ilford Gold Fibre Silk, Innova Exhibition Photo Baryta, Red River San Gabriel and so on. Canson has a not exactly the same replacement "Baryta Photographique II". Ilford said it will be a new "Gold FB Baryta".
IMO, Hahnemuhle Photo Rag Baryta is not a traditional Baryta paper, the texture and hand feel says all. It is a fine art gloss cotton paper, in the classification with Canson Infinity Platine Fibre Rag and Ilford Gold Fibre Gloss.
If your are looking a baryta paper feels like analog dark room papers, try Hahnemuhle Photo Gloss Baryta 320.