On Lemmy? The local Lemmy communities for the communities most impacted. Currently, most of what I see if on https://midwest.social/c/usa@midwest.social.

Outside of Lemmy?
mastodon.social
This is where I have found most raw footage, plus stabilized and slowed footage.

The local news stations for that area has the more verified info plus overviews.
Snapchat map for that area show some of the improvised barricades and troop movements.