eBay with prycedin has the certified refurbished Lenovo IdeaCentre Gaming 5 12th Gen Core i7 / RTX 3060 Gaming Desktop (90T00003US) on sale for $519 with free shipping. Includes 2-year Allstate warranty. 

• Intel i7-12700 2.10 GHz 12-Core, 16GB DDR4, 512GB SSD NVMe + 1TB HDD 7200rpm
• 12GB NVIDIA GeForce RTX 3060, Wi-Fi 6 (802.11ax), BT 5.1, Windows 11 Home