The bitrate is usually irrelevant to the reproduction quality of the headphone. 192kbps MP3 is not the biggest bottleneck with a Susvara or LCD-5 and the difference between that and lossless can be heard with some $50 headphones. Good headphones sound good (and better than less good headphones) even with poor quality files (128kbps and below). The sound quality difference between an excellent and good headphone stays about the exact same regardless if you use Spotify or DSD512.

For general fomo reasons I recommend 320kbps MP3 or lossless, but in most situations standard streaming is perfectly fine for almost anything.