Arsenio rhymes with:
aluminio, denio, eugenio, strenio, tarquinio, aluminio, amnio, antonio, cattaneo, colantonio, cotroneo, cuneo, dantonio, denio, diantonio, eugenio, hermenio, kunio, marcantonio, messineo, mineo, petronio, pineo, pinneo, pomponio, strenio, tarquinio, tsuneo, uneo, wainio
Arsenio sounds like:
aragon, aragona, arcana, arcane, arcanum, archenemy, argon, argonne, arisen, arison, arizona, arizonan, arkin, arraign, arreguin, arrigoni, arseneau, arson, arzama