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.
muts mutes mutts mauts mutase mats mots muds mauds motes meats mates mites metes matts mitts meets modus metis mitis moats moots motts mattes mottes matsah medius mottos mateys medusa meatus muddies metisse mottoes medusae mods moieties mids meds mads modes moods maids matza matzo meads meeds midis
beauts gouts shouts tuts tauts ruts puts outs nuts knouts muts mauts louts guts cuts bouts juts huts phuts ghauts buts pouts routs dauts touts uts shuts