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.
poets pots pets poetise poetess pouts peats potsy pottos petsai potsie pietas peds pats pieties poetize pits potties pods puts pates pedes putts patsy pitas poods patois pities pittas pitsaw paddies patties piteous puttees putties pads puds putz
poets leets motes routs fetas riots teats doits setts boots footsy outs zetas sots doats jotas lodes coats tootsy fets vetoes bots cotes pets toits lotas boats louts jetes nodes heats iotas goats mottoes bouts foetus photos seats weets botas quietus dots wots deets codes nowts roots shoats kotos redoes shotes rotos shotts netts tots yetis wheats chotts quotas votes odes potsy eats modes diets getas coeds bodes neats hoots keets knots lots etas rotes botts meets metis moats betas metes beets cots pietas toots lotos toeas meats vets jets hets geodes gouts motts toes foots phots notes totes bets does mots cetes fetes rodes tets dotes lets soots ghettoes peats dadoes suets dodoes jots loots sets fetus wets quotes oots pouts eddoes moots diodes gets coots haets biotas hots kiddoes knouts lotus feats rotis beats nets sheets quiets whets duets cheats didoes pots oats rotas quoits shoots rets shots rots shouts newts touts yetts
poet pot pet pooed spot pouty pout potty potto pieta piety petty petto petti peaty peat spotty