I don’t think any of those work. You have traditional furniture, MCM stools, lg piano and adding thick chunky modern tables would be too much. Lighter stain traditional table would work. You could even refinish what you have. Get a lighter colored rug, pillows and lamps More on reddit.com

Something like this you could move around? More on reddit.com

You could also consider a coffee table that incorporates stone, which could play off the rug in a cool way. More on reddit.com

The space has a lot of hard lines in the fixed elements, so this is a nice opportunity to bring in something curvy. Aside from the floors and fixed elements, it doesn't look like there's any wood in the space, so I'd choose that as a material choice to incorporate new texture (I'd opt for dark, like walnut). Depending on your storage situation, this could be an opportunity to incorporate storage. Your other furnishings all extend visible space (i.e., you can see through them) and so I'd similarly opt for something raised off the floor on legs, even if they're short. Target something that is 2/3 the size of the couch. Maybe it's the camera angle, but I'd move the couch more onto the rug if you're not adding more seating. More on reddit.com