T.S.
I'm so sorry, how awful!
Check with all the local churches, and other charitable organizations like Goodwill, Salvation Army and the Red Cross.
Also alert the school where your 6 year old goes and let them know what happened. Our schools have "helping hands" committees that get the word out to the school community when a family has suffered a tragedy or loss of some kind. We have helped two families over the years who have lost their homes in a fire.
I have also heard of an online resource where people advertise stuff they are giving away, I think it's called freecycle.org
Good luck to you, I can only imagine how hard this time must be.