Personally I just had a Synology DS1817+ with 8 x 10TB Seagate Ironwolfs when I wanted loads of space.
With 2 disk fault tolerance, around 60TB of usable space, supports caching with M2 drives and also 10Gb networking, if you don't want to bond the 4 x 1Gb.
Much smaller form factor, much less power and the awesome DSM OS.
The DS1819+ is the new kid on the block, and of course there are drives bigger than 10TB now.
Intel Core i9 9820X @ 4.5Ghz (1.253v NO AVX OFFSET)
ASUS X299 TUF Mark 2
2 x ASUS 2080Ti TURBO (Blower, NON-A)
32GB Corsair Vengeance LPX 3000Mhz (4 x 8GB)
1TB Samsung 970 EVO PLUS NVMe SSD
Corsair HX1200 1200W
Corsair H150i Pro (Corsair ML120's push/pull)
Fractal Design Define S Windowed
Windows 10 Pro
Acer Predator XB271HU 165Hz GSYNC 1440P
Corsair K70 MXRed
Razer Deathadder Elite
Schiit 2Uber Stack + Beyerdynamic DT1770
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