Furniture for asymmetric living room

[AGeorgiaBee]

Greetings! Reading all your thoughts here has been tremendously helpful in the past, and I am back seeking your guidance with a new space to furnish.

Our living room (see attached) serves as a pass-through from the foyer (top) to the dining room (bottom right). There is a fireplace on the right wall. What seating pieces and arrangements would you use in this asymmetric space? It is suited to be a formal living room, but we would like to use it as a dressy/tailored/traditional second living room.

We already have the relatively low back leather H&M Sanctuary Sofa in the den, which has an open floor plan (not pictured). In contrast, we’re leaning toward a (Taylor King?) fabric sofa for the living room but haven’t chosen a location, size, or fabric.