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.
boniatos bonitos bonitoes bonitas bentos bionts binits bounteous bonnets bounties bents bunts bints bonds bounds bindis bandas bannets banties bandies bennets bendays bandeaus bands bends binds bunds bendys
boniatos anattos annattos bonitoes bonitos giants cantos manitos manitous pantos pintos santos