Amazon echo compatibility status update?

Is there currently any options to use amazon echo or other Amazon smart speakers as a stereo pair for playback through them as opposed to the built-in Tv speakers?  For musical playback they are far better dynamically and offer a MUCH larger soundstage than does my @55” TCL Roku smart tv. I can not get them to recognize each other and I am positive other tv services off this compatibility….  Please advise. 
thank you,

Chris