Start with high-confidence historical ya ancient worlds books, then narrow by subgenre or adjacent topics.
Gentlest of Wild Things
Sarah Underwood
Troy
Adèle Geras
Blood of Troy
Claire Andrews, Claire M. Andrews
Storm of Olympus
Hekate
Nikita Gill
Lifestyles of Gods and Monsters
Emily Roberson
Warrior Scarlet
Rosemary Sutcliff, Charles Keeping
Lore Olympus: Volume Three
Rachel Smythe
Hearts That Cut
Kika Hatzopoulou
Lore Olympus: Volume Four
I, Medusa
Ayana Gray, Tyla Collier
Antigoddess
Kendare Blake
Nahia
Emily Jones
Girl, Goddess, Queen
Bea Fitzgerald
Lore
Alexandra Bracken
Daughter of the Underworld
Katharine Corr, Elizabeth Corr
The Mark of the Horse Lord
Rosemary Sutcliff, Scott O'Dell
Scorpions Ascent
Dr. Hollisa Alewine, Hollisa Alewine
Time Knot
M. C. Morison
