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.
goodman goodmen goddamn gateman gatemen
goodman woodman rodman radioman bedeman footman reedman ptomain ottoman madman leadman goodmen headman sideman badman potman automan aidman adman toman domain beadman seedman deadman daman rodmen woodmen