/tpain /brew /hertlife /cardboard_cowboy /granny /michael_lopriore /danrue are the only streamers that can progress the drops. Brew streamed party animals last night and someone told me Cardboard_cowboy streamed it a little bit, but the NBG crew are being sponsored by another game that released today, so they're probably going to be playing that game instead of party animals.
I put the actual links to their streams in the spoiler below, which will show when they're live and what they're playing.