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.
heed hied head hued haed hoed heady heyday heydey hid hod het had hade hate heat hide hood haet haute hoody howdy
feed heed geed jeed cooeed meed kneed need peed reed seed deed teed weed ed