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.
skoal sokol skull socle skill skell scale scaly scall scowl sickle sickly squall squeal suckle zocalo seagull soggily squally
skoal koel kohl coaly goal kail kale koala coala kola coal kolo focal vocal jackal local recoal sokol