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.
putamen putamina pitmen potmen pitman potman ptomain ptomaine
putamen stamen deadmen tamein batmen routemen potmen meatmen leadmen admen ataman automen badmen pitmen daimen bitumen boatmen etamin footmen vitamin headmen hitmen gatemen madmen beadmen titmen