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.
pinoles painless pinnules pineals paneless penniless panels
anoles pinoles painless awnless pinnules nounless manless lunules aneles gainless kinless cannolis noels veinules noils nolos rainless runless cineols sinless sonless zonules townless winless henleys biennales moonless canolas boonless enols finales finless hyphenless phenols bungholes veinless venules innless gunless quinols hymnless knolls reinless cineoles seniles snools sunless downless unless chinless