Qobuz, because it sounds best.
My ranking of streaming service sound quality
(as of November 2020)
1. Qobuz
2. Primephonic - now acquired by Apple
3. Spotify Premium (320 kbps Ogg Vorbis which is not lossless) - sounds surprisingly decent to me. It's shortcomings are error of omission rather than error of commission
4. IDAGIO
5. Amazon HD
6 Tidal