Best Classic Three-Seater Couch: Rivet Goodwin Modern Sofa If you want something classic and timeless, you can't go wrong with a cosy three-seater. The Rivet Goodwin Modern Sofa ($905) would look great in any space, it's seriously plush and cosy.. It also comes in dark grey and a navy shade. Image Source: amazon.com Rivet Goodwin Modern Sofa $905 from amazon.com Buy Now