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.
aeneus aeneous aeons ennuis ens eons enows ensue
aeneus nus janes fanes phonies genies canoes lioness meanies fewness anus gooneys vines bennies vanes banes genus benes beanies onus coneys nones bones joannes kines panes sanes pennies jones nonuse nenes lianes heinies gnus minus peonies kanes lunes gayness fines conus phones venues hinnies bennes denies guineas sones unaus tones tonnes ponies ruinous zones sawneys wanes toonies weenies tineas donnees whinnies wines woeness chines nuns sheeneys shines shinnies seines dunes mines pinnies rawness dines tenues loonies pawnees meinies townies tunnies wryness lenes sinews nines honeys monies dynes tawnies zanies lanes manes bines bonus anes bunnies hyponeas cines penes johnnies nonnews nannies leones vinous minnies jennies peones gunnies lowness coyness feyness conies funnies venous heinous keenness nous denes news hygienes ennuis phoneys genes canes lines manus fannies gooeyness ninnies venus boonies vainness noes genius knees ness ones cones bonnes goonies aeneous runes ranees dienes tennies looneys pannes meanness townees tunes leanness menus sines newness hones moneys dunness tawneys sonnies koines lunies pines dueness sinus wanness tynes tines tonneaus pones renews zines sanies waeness tonus tenuis scenes donees whines wienies winoes chaines nowness shannies sheenies shinneys shyness