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.
maraud marred married mart merde mired mured murid moored myriad
maraud fraud rad trued farad parade trad druid byroad dorado broad tread shroud brad bread orad crude braid corrade irade prude rudd rued road myriad tirade dread reread proud oread grad kraut grade crud raid read rude trade triad charade tiaraed
mara mar maar mair mare maria marrow marrowy marry mora morae moray mura