My sister lost everything in a fire

As of Saturday night, my little sister and her boyfriend lost everything due to a house fire. At this time
they aren’t sure what caused the fire. She lost everything she owned; her car, her clothes, instruments,
the computer her boyfriend used to work from home, family heirlooms… They were left with only the
clothes on their backs.
As of right now I have no idea what the total amount their loss is or how else to help them. Thankfully
she and her boyfriend are alive and seem to have minor injuries, and at least some of her cats made it
out ok, but they’re going to need all the help they can get to get back on their feet.