AZ Highway Patrol (they handle state highways i.e. I-10) scanner channel has the most action: http://www.broadcastify.com/listen/feed/14921 Phoenix PD protest detail is on a “tactical” channel that I haven’t found a link for yet.
Government run Facebook, is the platform for all of these things. IMO. The organizer said it himself, now the media plugging it.
This link on broadcastify lets you follow the activity very closely. I have a Google map up so I can see the streets and reference what they are talking about.