Kinda depends on what kind of historical you enjoy (western, eastern etc yk) but here are some that I enjoyed:
Bongchon Bride☆☆☆☆☆
Bloody Moon (Yuzuya)☆☆☆☆
Noppiki Naranu☆☆☆☆☆
Psyche☆☆☆
Blossoms of the White Night (Yaoi)☆☆☆☆☆
King's Maker ☆☆☆☆☆
Joseon Sex Shop (Yaoi)☆☆☆☆
Only When the Heavenly Demon Loses His Virginity Will Murim Survive (Yaoi)☆☆☆☆
The Snake that Swallowed the Pomegranate (Yaoi)☆☆☆☆☆
Taming the Tiger (Yaoi)☆☆☆☆☆
ENNEAD (Yaoi)☆☆☆☆☆
Eternal Covenant (Yaoi)☆☆☆☆
Turning (Yaoi)☆☆☆☆☆
Bad Friend (Yaoi)☆☆☆☆
Bad friend is 5 star* lol
Paljae
I read any kinds of historical, so thank you!
Please recommend a historical BL