So, I'm reading Wikipedia:WikiProject https://en.wikipedia.org/wiki/Wikipedia:WikiProject and nothing is jumping out at me as prohibiting a WP:WOMEN project. It says,

A *WikiProject* is a group https://en.wikipedia.org/wiki/Social_group of contributors who want to work together as a team https://en.wikipedia.org/wiki/Team to improve Wikipedia. These groups often focus on a specific topic area (for example, women's history https://en.wikipedia.org/wiki/Women%27s_history), a specific location or a specific kind of task (for example, checking newly created pages).

Couldn't our task be to recruit, encourage, and support women editors?

Lightbreather