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.
saimins simians seaminess siemens simoons sameness simonies semens somans summons simonize someones symbions
saimins ammines diamines simians remains limns limans cummins camions gamins caimans imines homines hemins haemins dominos domains mains amins laminas domines diamins daimons famines lomeins limens gamines miens cumins minas mines minis minus amines tameins