Can anyone vouch what is most useful to the protestors that we can support? What's actually being used? What do they need for communication? Does anyone there a

Can anyone vouch what is most useful to the protestors that we can support? What's actually being used? What do they need for communication? Does anyone there actually use Briar? I worry that some of these things are well meaning but ultimately a waste of time like Elon's submarine doodad.