Carina Press is looking for historical romances of any heat level and any time period. Minimum word count is 15,000 so this might be a place for your historical novella.
I love writing regencies. The sparkle of the language is simply fun, and I've read so many that I swear I could talk like that in real life. But I've also been obsessed with an idea for 1920s England, an American heiress (with social conscience and unwanted beauty), her overbearing dad, an impoverished earl and an old fairytale, King Throstlebeard. If my urban fantasy weren't obsessing me more, I'd write this story. And then there's the challenge of Ancient Hattush and the Hittites. Warriors, captives and palace intrigue.