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.
sauna sunna sun sunnah sane sawn sain sunn snaw sunny senna scena sawney sienna syn son sin sen sign sine snow sone soon sown seen sewn sene sinh syne zany zona
sauna fauna ana choanae lanai unau kuna tuna lauan sunna puna guanay ruana maun mania luna kana gaun goanna manna faunae faun faena buna anoa anna liana mana canna tauon unai choana hyaena