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.
aidman adman aidmen admen atman ataman automan autoimmune autumn automen
adman goodman madman leadman beadman reedman seedman headman woodman badman aidman rodman deadman toman headmen admen ataman badmen gateman hetman rodmen demean goddamn boatman radioman beadmen ptomain daman deadmen damn potman sideman domain meatman bedeman reedmen outman aidmen hitman footman routeman pitman batman atman goodmen madmen automan seedmen bedamn leadmen titman ottoman woodmen