While we're in Closed Beta, we have a weekly playtest every Friday from 11AM - 5PM Pacific, where all the devs log on and play alongside players. Queues are generally pretty fast during that window.
Outside of the weekly playtest, I would second the recommendation to join our Discord (and signing up for the gamer role we have in our Discord) - you can use it for LFG purposes and ping other players with the role who are interested in joining pick-up games.
Here's the link! https://discord.gg/playcrucible