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.
bonitoes bonitos boniatos bonitas bounties bionts binits bentos bounteous bandies bonnets banties bents bints bonds bunts bindis bounds bendees bannets bennets bandeaus bands bends binds bunds bandas bendys
bonitoes gunites unites dunnites sienites reunites pintos pinites manitous manitos lenities lenites quintes kainites gahnites nites canities vanities finites bonitos boniatos annuities mannites pintoes pointes sanities dunites tenuities unities
bonita bonito binit biont boniato bounty ebonite