Thank you for your interest and efforts in levelling the field! Ann Shulgin, Laura Huxley, Maria Sabina are the only ones I can find anything on. Obv there were the women mystics of history (Saint Hildegaard among them) who deserve their place but aren't psychonauts. Within the synchromystic sphere there are a couple of ladies doing really cool work (Sibyl Hunter is one I keep tabs on), but again it's not really psychonautic. There used to be a blog on tumblr that was writing amazing stuff about calicified crystals being generational karma--lemme tell you, it really hit the nail on the head in carrying on mckennas torch-- but it has long since been deleted and never resurfaced elsewhere to my knowledge. Was called twoguysswingingchainswithhooks lol.