What is this room used for? Doesn't look like a standard layout for a home. Please give more details and post additional pictures showing all 4 walls properly.

What is this space ????? We need a lot more info please . Post that here in a comment DO NOT start another post

Arrange seating in groupings or as one conversation area.

agree^ break the room up into useful areas. I would start by placing area rugs, similar, or complimentary, centered under each light fixture and arranging furniture for each, dining, conversation, entrance, etc.

even dividing each area with a tall piece of furniture, Armoire, decorative screen, console table...

Looks like a lobby or funeral home.

I agree with grouping the chairs.

You could add vases of artificial flowers to some of thebcoffee tables.

This is Restoration Hardware in Boston. Notice how they group the pieces. Put two coffee tables together to make a large one.

In this set up you may be able to get two sofas and 4 chairs, plus the two coffee tables.

Get a rug so that each arrangement of furniture has its own "room".