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.
guanay guan gunny guano goanna gan gun kuna gane gaun gain gaen kana canna canny goony quean gooney guinea can
guanay ana any nay shanny choana waney lawny zany ruana mana anoa nanny awny meany faena manna fanny anna fauna fawny mania goanna many kana nana lanai rainy canna sauna liana tawny canny wany choanae hyaena