Ideally one that can use more than one disk so that i can expand it later when i can. Have some minimal experience with Synology since there’s one at work and i have interacted with it a couple times and like the interface, but am not married to any brand as long as it works.
Located in EU if it makes any difference.
I would hesitate with WD. I’ve always been a fan of their drives but their software straight up wiped people’s backup disks a few years ago, iirc. That would give me pause before ever using their software again.