Amazon.com: HP ProLiant DL20 Gen10 Rack Server Bundle with Rail Kit, Intel Xeon E-2124, 32GB DDR4, 8TB SATA, Windows Server 2019 Standard : Electronics
The Dell T140 as a frankenstation : Compact, Silent and Powerful enough.
Amazon.com: QNAP Intel Xeon E-2124 4-Core 3.GHz Processor (Burst Up to 4.3 GHz), 8GB RAM (Max 64 GB), 5 X 2.5/3.5 SATA HDD/SSD and 4 X 2.5 SATA SSD : Electronics