u/EsotericFaery

Non-fiction

Sex is not compulsory: Giving up Sex For Better Health and Greater Happiness, by Liz Hodgkinson, 1986

Women, Passion & Celibacy by Sally Cline, 1994

Adam's Curse: A Future Without Men, by Bryan Sykes

Mother Ann Lee: Morning Star of the Shakers, by Nardi Reeder (biography of Shaker founder Ann Lee)

Sexology of the Bible: The Fall and Redemption of Man; a Matter of Sex, by Sidney Calhoun Tapp, 1870

Fiction (women-centric, and each with little to no romance)

Mystery novels involving the celibate, historical God-is-both-male-and-female, religious group the Shakers - Sister Rose Callahan Series

Middle-grade / All-ages, surprisingly complex and well written fantasy series - Faerie Tales from the White Forest by Danika Dinsmore

When Women Were Dragons, by Kelly Barnhill and Women are a Dangerous Magic, by Elora Nicole Ramirez

The Longest Night, by Lauren Carter

The Palace of Illusions, by Rowenna Miller

Atlas of Unknowable Things, by McCormick Templeman

The Obsidian Sisterhood (a trilogy about a martial artist ex-nun fighting supernatural forces to save her mostly female friends)