Ikea disclaimer: I don't work there, don't know anyone who does. Here is a link that might be useful: ikea media cabinets

My living room looks remarkably like your set up: tv + electronics on a dresser, light background. I'm planning to paint the wall dark to help the tv blend in visually. wish i could share an "after" but haven't made progress whatsoever.

It looks amazing already, it really does!!! In front of the radiator you can do a bench. But other than that leave it empty. Add some art that speaks to you. What do you like? Big family photo? A painting? Maybe just a mural art with molding around it to frame it out... so many options. I’d also add some new pillows with more color. Black, Blue, brown leather....

You have options! North side, have shine - powder-coated iron and hand-painted gold finish. This item includes two panels, to hang in a few ways. 2 panels, and each is 24 x 15 x .5” https://www.dotandbo.com/wildorchid/product/designs4comfort-magnolia-storage-ottoman-with-trays-tan-fabric?cacheBuster=1642497158&osky_campaign=end-of-page&osky_content=29