What's the best way (setup) to listen to Gigaton?

pistol pete

I have a receiver with a 7 speaker set up in the basement with a DVD player hooked up.  Should I buy the CD?  Or will there be a good download version (FLAC?)?   I'm assuming streaming won't lead to great audio quality.  Any tips would be appreciated as I'm not an audiophile.  I typically listen to my music in my car through CarPlay or through a bluetooth speaker at home.  With three kids under 7, I don't get the chance to sit down by myself and listen to music, but with the current state of affairs, I will likely get that chance.

And if I were to purchase another piece of audio equipment, what would you suggest?  Pair of nice headphones, a speaker that can produce Dolby Atmos?  I'm not looking to break the bank here, but if there's a way to spend a little bit of money to get a SIGNIFICANT upgrade in audio quality, I'd certainly consider it.

Thanks!