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.
cutis cuties cuts cutties cutes cuteys cutesy coatis cuds cats guts cots cuddies catties cutesie cooties cates quits cotes cadis coots coats gouts gutsy guids quids caids guides caddis quoits quotes cottas quiets quotas coitus codeias caddies gaudies caducei quietus coatees kitties gaieties cads cods gats kats kids kits qats
cutis uts tis dawties butts duits putties pouts cuties hotties butes patois cutes moieties cooties shouts utas ghauts pieties jetties juts reties gutsy butties gaieties cuts fatties routes shuts chitties knouts ruts tuts titties lutes titis tatties sties ditties laities tuttis quids etuis metis suits poetise satis muts nutsy guids booties dauties buts putts mitis footies beauts puts betise jutties cutties quits outs huts cities phuts sautes suets kitties coatis bouts jutes catties autos potties gouts ties beauties nuts tuis patties mauts dauts zitis mutts deities rotis mutes tauts pities tits louts bawties routs tutties tutus duets utes duties guts whities chutes touts shutes yetis
cutie cut couteau cute cutey cutty acuity acute scut scuta scute