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.
potsie pots potties poetise poetize pouts potsy poets petsai pities pottos putties patties poetess pits pats pets pods puts poods pitas pates patsy peats putts patois pietas pitsaw pittas paddies pieties piteous puttees
footsie tootsie potsie gaieties beauties bawties ties cutesie tassie pieties cutties moieties laities patties putties notice retuse setose dauties deities duties tatties ketose booties petsai whities fatties butties betise cooties lattice dassie kitties poetize footies hotties jetties outsee catties jutties pities poetise tutties cuties mutase potties reties cities sties dawties ditties tatsoi titties chitties
pot poet potto potty pout pouty spot spotty