As is mentioned above, Qobuz and Tidal generally cover too much of the same territory to make it imperative to have both.
When it came time, though, to track down a second streaming service for my all consuming, gotta-have-it-all classical needs, I ended up getting Idagio.
For a time I subscribed to the classical streaming service Primephonic, but when Primephonic got subsumed by Amazon, I decided to switch to the scrappy German classical provider. True, Idagio doesn't offer Hi Def, but their CD quality streams are more than good enough for me. Putting it another way, the Idagio dudes & dudettes have first class sets of ears.