Current first year student here. I'm sorry that you're in the position of waitlists extending your "limbo" period. That's no fun, though congratulations on 3 waitlists. That's something to be proud of, and definitely says very positive things about your likelihood of landing somewhere.
If you're looking to get to know these programs better, I'd recommend reaching out to current students at the schools you're waitlisted at. They'll likely be happy to speak with you, and can provide you with a more candid, up-close vision of the school and the department.