Something like TVS-h474 seems quite nice for a wide range of uses.
I have TVS-h1288X and I am really happy with it, maybe it's a bit overkill for most.
That said, I could not use zfs send from my prev fbsd server, there are some compat checks in QNAP's version. Used nfs to migrate from my decade++ old pool.
Using Tailscale for access, they have QNAP builds on GH.