I wouldn’t get too caught up in the audio format debate. If you are interested in trying or using MQA, buy a DAC and streamer that support MQA and Tidal. Just about any setup that will handle MQA will handle FLAC and other audio formats including DSD. Using MQA, however, will limit your choices with DACS and streaming services. If you buy an MQA compatible system, you can try both MQA and FLAC files and determine what sounds best to you. I use Qobuz because it sounds good, and it does not involve imposing licensing costs on gear manufacturers or producers of music.
I think that it more important to consider the streamer user interfaces, software, and how you will be playing music in your home. Your hardware needs are very different if you just want a streamer, a server, and music file storage in one device than if you might want to stream music to different rooms in your house. Some user interfaces on streamers might appeal to you more than others.
As others have suggested in this thread, you should consider going to a store to check out streamers. A decent stereo store should be able to show you Roon and at least one proprietary system like Auralic or Aurender.