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.
offals ovals ovolos ovules
offals fails ovals mughals coevals gavials false fils buffalos foals flus phials ruffles rifles dewfalls reveals duffles refalls whiffles raffles falls valse avails vails muffles coaevals coffles beefalos baffles befalls vials veals vales rivals riffles souffles refels duffels reavails waffles piffles shuffles