Start with high-confidence american historical romance books, then narrow by subgenre or adjacent topics.
Beautiful Ruins
Jess Walter
Destiny's Captive
Beverly Jenkins, Thomas Penny
Tempest
Beverly Jenkins
An Heiress to Remember
Maya Rodale
Wild Rain
To Catch a Raven
Beverly Jenkins, Kim Staunton
Beautiful Little Fools
Jillian Cantor
The River of No Return
Bee Ridgway
The Ship of Brides
Jojo Moyes, Nicolette McKenzie
Overseas
January LaVoy, Beatriz Williams
What the Lady Wants
Renée Rosen
The Rushworth Family Plot
Claudia Gray
An Unconventional Lady
Sarah E. Ladd
The Rose Garden
Susanna Kearsley
Season of Storms
The Second Mrs. Astor
Shana Abe
Atlas: the Story of Pa Salt
Lucinda Riley, Harry Whittaker
The Things We Leave Unfinished (SIGNED)
Rebecca Yarros