If you're looking to *buy* digital music and the artist isn't on Bandcamp, I highly recommend #qobuz.

You do not need to be subscribed to their streaming service to buy music from them!

They have a wide selection of music and offer both "CD quality" and high-bit rate versions of most music. You can download via a web browser or with their downloader app that make downloading in bulk easier. You can download in both lossless and lossy formats.

No need to give Apple (or Amazon) my money now.