I put mine on a Synology station. The higher-end ones can run their photo organisation software, that auto-recognizes faces (mostly). This lets you sort by date, face, and some rudimentary categories (pet, landscape, food etc.). Also has phone apps so you can see your photos there, which is neat.
I assume you're talking about the built-in Synology Photos app? I have a Synology NAS and keep putting off the decision for how I'm going to handle photo hosting. Ideally I'd want:
a unified archive (old stuff on random hard drives from both me and my wife, plus exporting/linking each of our icloud photo libraries and google photo libraries)
some kind of structured browsing, organizing things by timestamp (and including that in the filename) is fine
some kind of facial recognition, ideally a semi-manual approach that does its best on its own and then prompts for or accepts manual corrections
optionally, some kind of semi-manual de-duplication for near-identical images
optionally, an integrated way to share content, e.g. so I can text a friend a link to a specific album behind some kind of user authentication system