Aluminio rhymes with:
arsenio, denio, eugenio, strenio, tarquinio, amnio, antonio, arsenio, cattaneo, colantonio, cotroneo, cuneo, dantonio, denio, diantonio, eugenio, hermenio, kunio, marcantonio, messineo, mineo, petronio, pineo, pinneo, pomponio, strenio, tarquinio, tsuneo, uneo, wainio
Aluminio sounds like:
ahlen, ahlin, ahlman, aileen, alaimo, alain, alaine, alam, alamein, alamo, alan, alana, alane, alann, alanna, alayne, aleen, alem, aleman, alena, alene, alenia, alewine, aliano, alien, alihan, alima, alimony, alina, aline, allain, allan, alleman, allen, allene, alleyne, allin, allman, allmon, allum, allyn, alm, alma, alman, almay, almo, almon, almy, alon, alone, aloni, alum, alumina, aluminium, aluminum, alumna, alumnae, alumni, alun, alwin, alwine, alwyn, aulana, aylwin