Prepping for mass deportations?

I myself am not from an immigrant household but I have many close friends, neighbors, acquaintances, coworkers, etc. that would be impacted by an ordered mass deportation, especially if those with birthright citizenship or naturalized citizens get swept up in the mix.

I'm very concerned and wondering if there is any way to start preparing for what sounds more and more like this inevitability. I'm thinking things like paperwork everyone should have on hand regardless of citizenship, communication plans for if people "disappear," etc. etc.