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.
attrit attrite adroit attired
attrit diorite whittret strut start retort patriot outwrit nitrite meteorite droit tart territ tort trait tret trite trot adroit attrite feterita futurity laterite maturity nitrid outtrot outwrite putrid siderite strait sturt chytrid