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.
side said site sidh sade suite suede sayyid sit set sad sod cite soda sudd sati sett sadi seed stey sate seat cede sued suet seta suit stew stoai saute suety seedy stoae stewy soddy setae zooid
aide bide eide vide hide guide nide ride side tide wide chide de id