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.
metis metisse metes meats meets mitis moieties medius meatus medias mots meds muts mats mids motts moats mates meads moots midis maids modes meeds mites motes mutts mitts mutes matts mauts medusa matsah mattes mottos mottes mateys mediacy middies meadows mottoes medusae muddies middays metazoa mads mods muds
metis yetis tis newts tuis meets footies ties catties laities getas beauties cutties patties jetes feats tatties keets fetes haets hets pets beets beats nets codeias cuties reties cetes pieties duets fatties whities diets wheats weets deets tutties tits zetas tets fetus jetties chitties potties lets poetise rotis dauties betise sties betas satis sets quiets cutis eats meats netts booties butties pietas bawties etas quietus vets metes patois bets gets hotties heats cooties foetus coatis gaieties kitties fets pities neats peats jets moieties rets leets setts seats etuis suets mitis dawties cedis poets fetas cities putties duties jutties titis zitis titties tuttis deities wets whets ditties cheats sheets teats yetts
met meat meaty media mediae medii meet meta mete