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.
sinews sines seines sins sones since sinus sinhs snaws zines sains cines sanes snows sanies scenes scions sinuous sonnies sawneys siennas science zins suns sans sons sunns sense zones sonsy sensa zeins sonsie hysons sneezy snooze seance saunas sunnas sennas scenas sneeze sanious senecio sunnahs zinnias
news renews nonnews sinews dunes honeys johnnies aeneus hones bennies hinnies tines peonies boonies looneys gooeyness bennes moneys goonies anes banes bines meanies wanness lines phones jones janes newness ninnies dines coneys sheeneys scenes wienies sones genies canoes phonies cines lowness woeness joannes sines shinnies runes chines dynes donnees denies zanies pennies whines tenues shines snaws panes nannies rawness knees tonnes waeness winnows pinnies tunes zones lunies sanies fines ones fanes koines ponies tawnies townees leanness bones vines meinies keenness leones gunnies tynes benes pawnees venues fewness shannies funnies jennies nenes bunnies minnows dienes knows cones lenes whinnies snows feyness minnies enows noes gnaws winoes penes pannes wanes manes seines gayness coyness canes lunes kanes vainness zines ranees heinies nones tineas guineas dueness newsy beanies nows ness shinneys sawneys toonies monies lioness meanness gooneys kines pines tawneys loonies hyponeas lianes genes peones conies mines fannies tunnies hygienes lanes townies sanes tennies chaines dunness donees denes sonnies bonnes weenies sheenies nines vanes nowness wryness phoneys pones tones unsew wines shyness
sine sinewy sinew sin sinh esne zine syne sone sene sign sienna seine sane sain cine usnea