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.
caimans caymans camions cumins gamins commons cummins gamines gammons kimonos combines communes gameness gaminess kamaainas commonness
caimans limans mans womans limns domains moans damianas bemeans daimons caymans simians humans romans bemoans remans lemans manus means manse manos manes manas mains limens remains romanos saimins somans damans demeans tomans shamans