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.
feed feued fed feet feod fete feud fet fid fud fad fouette fade fado fate feat feta fido food vied faddy fuddy fytte
feed heed geed jeed cooeed meed kneed need peed reed seed deed teed weed ed