Small local management network - equipment options

We are setting up a small local management network for a few dozen machines. This network will be used for local "remote access", NTP, file transfers, and other misc tasks. The machines are already networked but we don't want to use that critical network for any of these non-critical tasks.
This equipment will likely get installed and then not changed again until it starts to fail physically. (thinking 10+ years)

I am looking specifically for equipment that supports local centralized management and nothing that is either cloud or subscription-based. I was considering the Enterprise 24port switches from Ubiquiti and a dream machine pro as the local controller.

Let me know if you have any suggestions for other vendors that I can look into.

Thanks