Start with high-confidence gilded-age romance books, then narrow by subgenre or adjacent topics.
Secret Sisters
Joy Callaway
Duchess by Design
Maya Rodale
Some Like It Scandalous
An Heiress to Remember
The Gilded Heiress
Joanna Shupe
Gramercy Park
Paula Cohen
What the Lady Wants
Renée Rosen
The Age of Innocence
Edith Wharton
The Portrait of a Lady
Henry James
All the Pretty Places
The Second Mrs. Astor
Shana Abe
Daisy Miller
