One thing on my mind has been how big tech can censor our comms. I fully believe in the event Trump invokes the insurrection act, we wouldn't learn of it the normal ways due to a media blackout.
In the event the above happens, and we are kept in the dark, i respectfully request President Trump orders the flag at The Whitehouse to be flown upside down to get the word out.
https://www.signal.org, https://wickr.com/products/me/
They're the only two I know of. Would require pretty much everyone to share contact details.