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.
brant brand burnt brunt brent braunite burnet brunet brandy burnout branned bornite brained baronet brownout brunette barned brined burned browned
rant courant hydrant arrant tyrant jurant brant warrant currant errant grant couranto brand errand grand runt horrent garnet cornet burnet rand variant rent riant print front coranto truant learnt grunt hornet brent gerent parent guaranty gurnet burnt carnet hairnet current maranta courante brunt torrent rerent forint warranty
bran branny burnie buran barn barney barny borane born borne brain brainy brawn brawny bren brin brine briny burn byrnie