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.
cummins cumins gumminess camions commons combines communes communise gamins commonness caimans caymans gamines gammons commence gaminess communize kamaainas kimonos
cummins amins dominos domains diamines simians remains lomeins gammons gamines cumins minas mines minis minus amines mains famines gamins domines diamins summons saimins mammons laminas miens ammines commons camions imines homines hemins haemins tameins