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.
primate permeate primed permute premade primmed promote paramatta permittee permed permit premed premeet promoed hypermedia pyramid
primate ramate remate roommate bromate fermate formate cremate crewmate permeate chromate