Replacement for WD MyCloud Home

Hi. I’ve been hit by the WD MyCloud not longer being compatible with Channels. I’m therefore looking to replace it.

I’m confused that most NAS’s are sold as “enclosure only”. Does this mean that I’d also need to purchase the drives / memory separately?

As a novice to this (and not being very technical) I liked the simplicity of the MyCloud and not needing to purchase separate drives etc. I’d therefore appreciate advice on the best MyCloud replacement for Channels that is both affordable (the 4TB MyCloud cost about £150 so was hoping I could get something for a similar ish price) and very easy to set-up.

Many thanks in advance for any advice.