There are no concrete numbers for Valorant that I know of, but the “Head of Esports Partnerships and Business Development for North America & Oceania Riot Games” Matthew Archambault was quoted saying the Valorant player base is 30-40% women [1]. That seems plausible to me based on my own experience playing Valorant.
[1] https://gamesbeat.com/how-riot-games-wants-to-ensure-that-va...