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.
unaus unais uns unease uneasy unsay unsew unnoisy unci
unaus nus anus vinas nous bonus tenues bunas heinous venues sunnas menus hyponeas guineas genus manas conus pinnas genius lianas mannas scenas kinas faenas snaws hyaenas faunas whenas donnas unais tineas taenias zinnias nonas ruinous tonus anoas nuns minus quinoas siennas ennuis rennase guanase nanas veenas mynahs mynas tenuis gnaws venous vinous annas manus lunas punas tunas cannas goannas gnus anas kanas pinas xenias venus manias genoas nays hennas nans sinus sennas kinase saunas guanays ruanas naos minas tonneaus monas onus duennas fauns nonuse sunnahs donas tenias aeneus lanais chinas hyenas