I know the RTX 3060 isn't out yet so this is hard to say but I'm either planning on buying this second hand
Intel Core i7 8700K,
Gigabyte Z390 Aorus Master Motherboard,
Corsair H60 V2 AIO,
16GB G.Skill Trident Z RGB 3200Mhz DDR4 RAM,
MSI RTX 2080 Super Ventus XS,
1TB Samsung 970 EVO Plus NVMe...