Well, First is NateWantsToBattle (which he never reply just because he blocked me from Instagram), then Dima Lancaster (which he isn't supposed to do it), then there's Mr. Goatee (which he isn't supposed to do this).
All I have left is David Delgado, and Will Stetson (which I reply both of them and never replyed). And also, I requested to Amateur Tempest to do the Grisaia but he was too busy doing other's requests.
Where to find a male singer to cover the English version of the Grisaia no Kajitsu op? I can't cover myself using cumbia