Among, this is because you put both options into the black and see which one sounds better. Hope I helped you!
The bolded word here is the BESTSELLER. This kind of complement is a direct object complement. The adjective overnight denotes to the object bestseller which is an adjective. Another adjective complements another adjective, thus, the term direct object.
I’m not sure if this is correct, so don’t come at me.
Answer: In the hallway there is a jacket on the left side of the closet.