A setup that I can now heartily recommend (after using it for 6 months) is Apple TV 4k and the Infuse media app[0]
It's able to find your movies and series on Samba shares (and probably other types of locations, too) and categorize, find subtitles, adjust audio and so on.
This assumes you've already got your media somewhere of course (like a file server on your LAN), but I bet 99% of the HN crowd has a home server anyway. And if you use torrents, you can dump the media there.
[0] https://firecore.com/infuse?utm_source=hn (you will need the Pro version which is about $15 a year, if I recall. Well worth it!)