Cool, well then I can at least share what I went with that has worked really well: GMKtech N100 NUC from Aliexpress with 16 GB of RAM.

It’s hosting Jellyfin with transcoding, PiHole, Home Assistant, Heimdal, a Valheim server and loads of other small LXC’s in Proxmox.
I don’t think I’ve ever seen it break a sweat.
The NAS holds the .arr stack and Qbit, but that’s it.

I cannot speak to the longevity of it, but I repasted the CPU once I got it and it’s chilling below 45 degrees all day long, so I expect it to last for many years. I also enabled C-states to get idle consumption as low as possible, around 7-8W.

Best of luck with whatever setup you end up with mate!