KOTIN Prebuilt Gaming PC Desktop, AMD Ryzen 5 9600X up to 5.4GHz, GeForce RTX 5060 8GB, 16GB DDR5-6000, 1TB PCIe 4.0 NVMe SSD, 650W 80+ Gold PSU, WiFi 7, Win 11 Home, 1080p/1440p Gaming Tower

https://www.amazon.com/KOTIN-Prebuilt-Desktop-Computer-DDR5-6000/dp/B0GKN898GF Pretty much any prebuilt with a RTX 5060 and a modern CPU will 2x the steam machine. You even get the ability to upgrade down the line.