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.
formate format fermate formed fermata farmed firmed framed furmety furmity fremd vroomed
fermate formate termite doormat primate permute permeate marmite cremate crewmate format fermata bromate roommate remate ramate chromate