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.
challis challies chillis challas challahs chillies chills chilis chalehs chilies chollas chalice chalahs chalazia shallows chyles sheals shoals shales chiles cholas shawls cholos chiels shauls shills chelas shells chalaza chylous chalazae shuls sials sheols shiels shools sheilas
tallis challis alls tallies jellies wallas wallies phallus cullies talls follies walies valise jollies cullis malls hollies gallus quillais aaliis bullies balls chillies kellies sullies challies woollies dillies dallies palais ballies sallies wellies callus alias rallies fillies collies calls caulis ghillies lalls gullies callas halls maills lollies mealies galls allies bialis dellies bialies ballsy bellies hallos falls realise killies palls gillies tellies gallies dollies nellies fellies goalies challas walls follis sillies billies dalles willies mollies chillis lis als
challa challah challie chally chalah chaleh chill chilli chilly cholla shall shallow