All mass produced furniture has them. The only way to avoid is to find the last few vendors that build-to-order items like sofas, but then we're talking ultra-premium tier pricing (and are rare).

Even the new flame retardant that they're using to replace the old one is considered dangerous. So there's no end in near sight to this problem. I don't know of a realistic/affordable solution for normal consumers, even with knowledge of the problem.