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.
guano guan gun gan guanay gaen gain gane gaun gunny canoe quean quinoa guinea goanna can quin kune cane gone goon gown kana kaon kain keno kino koan kuna kane cain
guano anoa beano fano canoe guan quean lauan llano mano piano ruana danio yuan