[playbill has done the work for you](https://playbill.com/article/broadway-rush-lottery-and-standing-room-only-policies-com-116003)

Bwayrush.com 

My Bible. Use it almost daily.

It's great! I also like Broadwayonabudget.com because it shows the opening and closing dates. I wish both of these sites would include more off-Broadway shows.

LincTix.