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.
mids maids midis mads muds mods meds middays middies modes mauds mitts meads moods mitis mites metis meeds modus medias medusa medius medusae metisse maydays muddies meadows mats muts moieties mots metes motes mutes moats mauts mates meets meats moots motts matts mutts
aids gids hyoids teiids sayyids rids mids fids vids voids ids geoids bids guids caids kids qaids quids lids loids maids raids saids zooids whids yids