As an AI language model, I cannot predict or recommend a specific corner sofa set for 2023. However, I suggest that you look for some elements of design such as material, style, color, texture, and comfort. Also, you should consider your living room's layout, size, and storage needs. Some popular materials for corner sofas are leather, velvet, microfiber, and linen. The style can range from contemporary, traditional, mid-century modern, farmhouse, or industrial. The color should match or complement your existing decor, and the texture should be comfortable and durable. Moreover, a good corner sofa set should provide ample seating and room for lounging, as well as storage options such as built-in drawers, shelves, or cup holders. Ultimately, your choice will depend on your personal taste, budget, and lifestyle.