pictures please

Certainly not a sectional the DR table could be moved further from the fireplace but honestly without actual measurements odf the space and a floor plan I have no ideas

So I would move the DR table nearer to the bay window have a sofa and 2 chairs small er scaled in the LR space and then 2 more chairs facing the fireplace that can be turned to be part of the LR. A round dining table would be my choice since the room is quite narrow a 54” one should fit. Or maybe just a bench in front of the fireplace This pic is my LR and I use the bench in front of the frieplace all winter it is a nice spot to sit with your back to the fire and is always a handy spot for a couple more seats when needed.