- biographical novel of a female ruler, or female member of a royal family
- biographical novel of the wife/consort/mistress of some famous man (including biblical figures)
- novel of a fictional woman's daily life in a given time period
What I'm not seeing are many new deals for this type of novel in Publishers Marketplace, though there have been a few. It makes me wonder whether this theme - along with the corresponding headless bodice covers - will have played itself out in the next year or two.
I haven't yet started analyzing literary historical novels for the same time period, though I know there are many more of them.