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.
soggily sickly scaly scowl sigla skill skoal socle sokol sickle sigloi squill seagull squally squilla zooglea
baggily foggily fuggily muggily soggily shaggily gaily giggly jiggly goggly niggly wriggly waggly wiggly