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.
togue togae toque tog toga toke tuque tegua doggie dog tug tag teg duke taco take teak tegg tike took tuck tyke
vogue rogue togue ague fugue vague gigue league maguey roque segue togae toque