My daily driver is a repurposed server CPU with a repurposed server motherboard. It has a Chinese motherboard (Machinist MR9A) paired with an old Xeon E5-2667 v3. Have a lot of SATA connections (6 IIRC), 2 NVMe slots, support quad-channel memory (up to 4x32GB), and ECC memory. Paid 50 bucks for the motherboard and less than that on the CPU on AliExpress. It will need a beefy power supply (mine is 800W) and will heat your house if abused (that can even be an upside, depending on the weather).