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.
stamen stamina seedmen sidemen seedman sideman
putamen stamen goddamn hitmen etamin vitamin bedemen bitumen beadmen daimen bedamn badmen rodmen radiomen seedmen potmen ataman daman titmen batmen leadmen boatmen demean meatmen damn madmen goodmen gatemen footmen headmen pitmen aidmen automen diamin tamein admen routemen reedmen sidemen deadmen woodmen
steam steamy stem stemma stemmy stime stimy stoma stum stymie stymy