Although they're very different Bargain reminded me of Sweet home because of similarities in visual feeling, setting in building (people are stuck inside and trying to survive). Also both dramas are very action packed but I'd say main difference is that Sweet home is trying to show that there is bad in people but there is also good and hope in them. In Bargain characters seems just like really trashy human beings.
If you enjoyed Sweet home you should try to watch Bargain.
If you enjoyed Sweet home you should try to watch Bargain.