Kubernetes distribution for on premise with bare matel

Hi everyone!!!

I want to build on premise kubernetes cluster, I have 4 Dell servers with follow specifications:

Model: OEMR XL R630
RAM: 256GB
CPU: 2 x Intel Xeon E5-2680 v4 2.4GHz,35M Cache,9.60GT/s QPI,Turbo,HT,14C/28T (120W) Max Mem 2400MHz, OEM XL
Disk: 2 x HDD (1TB / RAID)

The purpose of my cluster is running applications to monitoring network equipments with applications like: prometheus, loki and snmp. I want to inventory my equipments with Netbox application and save data on Postgresql database.

Based on my hardware and my purposes, wich kubernetes distribuition is recomended?