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.
gladly gladiola gladioli coldly glottal gluteal cloudily guiltily colloidally keloidal
gladly ladle childly dillydally pallidly mildly lewdly loudly baldly bloodily boldly flatly fluidally fluidly validly veiledly gelidly cloudily coldly colloidally palatally solidly wildly chiliadal
glad glade glady clad claddagh clade galatea gled glede glide gloat gold