Sometimes you need Alexa to look down on you.
My Echo Spot sits on a shelf above eye level, it is designed to sit on a table and you look down on it, rather than up to it. I designed a holder based on a ball-socket shape and this allows you to tilt Echo down to any angle you like. If you need a steep tilt try a bit of friction tape (or better yet hockey stick tape) that will keep it in place. Only needed if your tilt is steep. Mine didn't need it.
I noticed vent holes around the Spot so carved out some grooves to allow air flow around it - mine does not get that hot but maybe if you are playing some hot music for a long time it might.
Simple print, no supports, could use a brim if your prints tend to warp at the edge but not needed if your adhesion is good. I used PLA but any material would work. TPU would give a great grip.
Designed in Tinkercad - because I have not yet graduated from tinkering.