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.
rondo round rind rondeau rynd rend reendow rand rindy ranid randy rained reined ruined reigned rant rent runt
condo tondo rondo mondo undo boned bound kendo fondu zooned mound fond pond wound sonde endow phoned onto reendow bond poind found round honed zoned tondi menudo sound pound neoned honda mooned window monde toned monad gonad conto coned indow hound yond
roan iron irone irony crone crony krona krone prone drone trona trone