I’d decide this from the two walkways, not the overall room size. Each 108" sofa adds 13.5" at its end compared with a 94.5" sofa, and both options are already 37.5" deep. Tape out each sofa footprint on the floor, add the swivel chairs at their widest turned position, and then actually walk the routes past both sides of the fireplace. I’d try to preserve roughly 36" of clear space on those main paths (more if they’re busy routes). If both 108s leave that clearance, wonderful; if only one does, the mixed pair seems the sensible choice, with the 94.5" piece by the tighter walkway. I wouldn’t order two 108s based on the room’s overall dimensions alone. If you mark the exact two sofa positions on your plan, it’ll be easier to give you a confident pick.
I’d decide this from the two walkways, not the overall room size. Each 108" sofa adds 13.5" at its end compared with a 94.5" sofa, and both options are already 37.5" deep. Tape out each sofa footprint on the floor, add the swivel chairs at their widest turned position, and then actually walk the routes past both sides of the fireplace. I’d try to preserve roughly 36" of clear space on those main paths (more if they’re busy routes). If both 108s leave that clearance, wonderful; if only one does, the mixed pair seems the sensible choice, with the 94.5" piece by the tighter walkway. I wouldn’t order two 108s based on the room’s overall dimensions alone. If you mark the exact two sofa positions on your plan, it’ll be easier to give you a confident pick.