Wow! You have submitted so many great design ideas.
I like the way you incorporated an element into the name with the E and sound waves.
I also like a mark that stands alone and evokes an "S" like
#77,
#79,
#59, but I also like the mark on
#38 too.
I would like to see whether taller, thinner fonts, more like in
#38 than
#37, would look like in your designs.