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.
challahs chalahs challas chollas chalehs challis challies cholas chelas chills chillis chalaza chalazia chalazae chillies shallows shoals cholos shales sheals shawls shells chyles shauls chilis chiles chiels shills chalice chilies chylous sheilas shuls sials sheols shiels shools
hallahs mullahs challahs fellahs zillahs mollahs nullahs wallahs selahs paellas hulloas chalahs fellas blahs halloas holloas challas moolahs hollas quillais hilloas mullas allays wallas villas scillas galahs ollas callas cullays chollas las
challa challah challie chally chalah chaleh chill chilli chilly cholla shall shallow