I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
chalahs challahs chalehs challas cholas chelas chalaza challis chollas challies chalazia chalazae sheals chyles shoals chiles chills chiels shauls shawls shales chilis cholos sheilas chylous chillis chilies chalice chillies shallows shuls sials shells sheols shiels shills shools
galahs chalahs alas challahs coalas selahs nullahs mullahs alias balas blahs fellahs hallahs callas dalasi galas galeas koalas mollahs moolahs nalas palais zillahs talas wallas wallahs chalehs challas las als
chalah chaleh challa challah challie chally chela chelae chola