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.
wastrie wasterie waster wastry waister wastery wistaria wisteria wester
wastrie stare maestri gastrea lustier vesture vastier hastier fustier feistier wristier ghostier restore dustier piastre testier pasture wasterie nastier chestier moisture bustier bestrew stria mustier mistier gustier lustre store strew gesture striae austere stere zestier rustier tastier posture toastier pestier bistre pastier yeastier