I appreciate the advice! I am thinking of Synology or perhaps DIY with either TrueNAS (Scale likely) or Unraid. Synology would be cheap, small, easy on power and thermals too though and I've been looking at the latest and previous gen DS2XX lines.
Also I appreciate the Jellyfin mention. I've been using Plex so long and was thinking about something else like Jellyfin especially but I've never worked with it before.