From what I've read in other threads, one of the Chandlers' neighbors are taking care of the pets. If anything genuinely positive can come out of this whole disgusting, fucked up situation (aside from Chris being removed from polite society for a good many years), what with Barb likely being put in a care facility and that motherfucker Chris getting put behind bars or in a padded room, it would be for the Chandler animals to finally find good homes where they will get the love and proper care they deserve. It's just a shame that this all didn't happen years earlier so that poor Snoopy could have enjoyed at least a few years with a family that actually gave a shit about him enough to put him on real dog food, help him lose weight, and actually get regular visits to the vet. He could have maybe even lived the average length for a Beagle instead of dying prematurely, miserable up to his dying day.