Start with high-confidence romance books, then narrow by subgenre or adjacent topics.
Flirting With Danger
Unknown author
Since You're Leaving Anyway, Take Out the Trash
Upstate
Chadwick Boseman, Heather Simms
The Wicked in Me
Suzanne Wright
The Next Phase of Life
Charmaine R. Parker
Lethal Affairs
Kim Baldwin, Xenia Alexiou
Tonto Basin
Zane Grey
The Iron Heel
Jack London
Decameron
Giovanni Boccaccio
For the Temple
G.A. Henty
Holiday Romance
Catherine Walsh
The Cup of Gold
John Steinbeck