I learned about this site yesterday. I’m probably late to the party, but I thought I’d go ahead and share in case you don’t know about it.
https://homosaurus.org/
Welcome to the Homosaurus! The Homosaurus is an international linked data vocabulary of Lesbian, Gay, Bisexual, Transgender, and Queer (LGBTQ) terms. This vocabulary is intended to function as a companion to broad subject term vocabularies, such as the Library of Congress Subject Headings. Libraries, archives, museums, and other institutions are encouraged to use the Homosaurus to support LGBTQ research by enhancing the discoverability of their LGBTQ resources.
If you have a little bit of time to check out the recording from the OCLC 2022 Cataloging Community Meeting (not just for catalogers!), the first session is on the Homosaurus: https://www.oclc.org/en/events/2022/cataloging-community-meeting-Jan2022.html