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.
toyer tyer tuyer twyer tuyere dyer
foyer oyer coyer toyer layer tyer lawyer tuyere sayer feyer hayer wryer payer year eyer bowyer sawyer dyer buyer gayer tuyer voyeur twyer boyar shyer