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.
rosinous resinous rosins rosiness resins raisins ricinus ricins raciness
mucinous acinous resinous rosinous sanious sinuous sinus acinose acinus casinos cassinos ozonous poisonous ricinus
rosin rosiny resin resiny rusine arsine arsino ursine