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.
gate gat goatee gateau cate gaed gait goat quate gaiety coatee cattie guttae gad gut qat got kat cat cute cade gaud gout cote gadi gude kata kyte coat goad kite guide quite coati cutey gouty catty gutta gaudy cutie gaddi gutty quote
ate bate fate hate cate gate quate late mate pate rate sate date tate at