I recommend sourcing quality parts and building your own

I'll sell you my used Drobo 5N with five 1TB HDDs for 300,000 sats

I have two Synology NAS (4 bays) and one Unraid server I built myself… the Synology systems are so nice from a plug and play perspective.

Also run my PLEX server on the Synology which has been awesome.

DS423+

#yestr https://video.nostr.build/10f0caa5b445e144f26297ea1c11d63a39481af7751f07b98032f914d43b717e.mp4

Pretty happy with my 6 bay Asustor running Truenas.

Synology if you want easy mode (and SHR is great for expanding disks over time).

TrueNAS scale if you’re comfortable building a server and forgoing a bit of flexibility with the storage pool, with the benefit of some great open source functionality.

TrueNAS would end up being cheaper, but it’s worth looking into SHR in my opinion before making a decision.

https://www.synology.com/en-us/support/RAID_calculator

https://forums.serverbuilds.net/t/guide-nas-killer-6-0-ddr4-is-finally-cheap/13956

A small Linux server, two external HDDs with software RAID. Seriously.

I used to use Synology NAS even though I had to use an NFS mount to run my own install of nextcloud. I eventually threw it out when I had multiple drives fail at once. So much fewer issues, and easier to configure , with a simple Ubuntu box.

Coincidentally, also turris omnia or maybe turris MOX (configurable one). I'm not sure from the top of my head if MOX has something more for NAS but I think so.

Build your own with OpenMediaVault (OMV).