Headphones

Congrats on your purchase! I think you may want to do some research into the music quality offered by streaming services to answer your own question. I'm sure that you know lossless file formats offer the highest sound quality, so just pick a streaming service which offers lossless. Spotify does NOT, even in max quality, even in offline mode. Qobuz and Tidal do have lossless files for their entire library. I believe Apple music does as well but never had this service so you can do your own research there.

If you have somewhat esoteric tastes in music, you may find that Qobuz or Tidal do not have all your favorite music. This is a big problem for me since I like foreign music. Spotify seems to have every song ever made, but Qobuz library is limited. So, for many of my songs I just have no choice except Spotify. I accept that because max 320 kbps still sound pretty decent to me on the headphones I use for portable listening. Again, I'm not sure about the library size of Apple Music so that might be a good option for you to investigate.

Amazon Music is a good option which I have used in the past. The library is huge and all in lossless or HD if you use the Amazon Music app. However, Amazon Music does not allow 3rd party streaming devices like Bluesound to stream lossless which really kills its utility for people with a dedicates streaming system like myself.