On Amazon and Literotica. I like body transformation, not so much mental.
Faves are Jack L Chalker and Ed Miller. ALso Chrystal Wynd who’s nice. I’m looking for work in a similar vein.
If allowed I’ll post my own stuff.
Source: reddit.com/r/Erotica/comments/wa2koy/im_looking_for_erotica_with_transformation_i