I return to this thread with results - a wolf does hunt on it's paws after all.
After some searching it would appear that Shibby, who appears to have a fairly large archive of content that is both free and of fairly high quality in terms of recording, is the answer. The majority of files of hers that I have found have multiple recordings for male / female variants and the general tone is more in line with what I had searched for. ESuccubus has a similarly large catalog of free material that has male / female variants and gender neutral files that cover general hypnosis. These two would appear to be the best matches for what I had set out for - they hardly won by default but the competition was not particularly strong.
In consideration for my partner (and having sampled a fair amount of material available on WMM and other sources) I have to consider the general quality of hypnosis available for biological women to be very low. Perhaps someone enjoys it but I do not imagine most women would enjoy generally repetitive "you are a slave, you want to serve me" material without much sexual stimulation any more than I would. Additionally we have agreed that male narrated hypnosis is simply not particularly desirable even to someone who is not attracted to women. Perhaps men lack the subtlety to evoke a sense of control without it being obvious they are sitting there with an erection? Or is there just an air of desperation that seems to come from those files, where it is impossible to imagine the narrator as being particularly powerful because they are ultimately just some guy recording a file at his computer trying to get laid?
Who knows.
The following files I have given a once over and found to be of useful quality. If people want I can go back to re-edit this post to directly link to these files but the sources for them are
https://shibbydex.com/home and
https://esuccubus.com/. Downloading files directly from esuccubus involves a minor amount of wizardry by right clicking, selecting page source and then finding the link (around line 70-73) directly to the media source. This can be quickly found with a simple ctrl + f / ".mp4" search. Files are marked (S) or (E) for Shibby or ESuccubus, respectively. Ones of particularly erotic quality are marked with *
(E)Brain Drain series 1-5, along with the separate induction file and Drained
(E)Night Night 2020
(E)Pussy Overwhelmed*
(S) Clench for Me Good Girl
(S) Squirming Mess*
(E) Bimboitzation Masturbation*
(E) Blank Puppet Masturbation*
(E) Little Corruptions
(S) Triggered Into Pleasure