I can also order it in the Netherlands

[ed]

Given your requirements for centralizing data, avoiding duplicates, and managing your Adobe Lightroom files across multiple devices, the Synology DS423+ or DS923+ would be excellent choices. These NAS systems offer robust features for data management, including easy backup solutions and seamless integration with Adobe Lightroom. With their ample storage capacity and reliable performance, they provide the perfect solution for your needs, ensuring efficient data organization and accessibility from any connected device.
https://nascompares.com/nas-builder/