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.
paused passed paste pseud paced posed pissed peised pseudo peaced poised pastie passade passado past pasty piste pasta poussette peseta pieced posada posset postie pesade paucity pst hypoacid
boused choused fused caused roused mused paused bused moused soused housed loused used toused doused reused gussied feased messed cased biassed hosed issued goosed noised liaised physed gessoed cosied visaed posed gassed passed raised busied seed sauced fussed dosed chowsed cheesed chased wised tissued tawsed missed reissued daisied cessed disced poised bowsed lassoed fuzed phased nosed pissed suede sued peised roosed guessed guised moussed lysed mussed cussed noosed loosed lased pseud leased seised biased reseed jessed viseed fessed vised bossed based hoised reseda ceased rosed dossed rased massed bussed kissed tossed hayseed hissed sussed sassed deuced dissed dowsed teased mossed wissed chassed eased yessed
pause pas pus pease spas peas paps pays pussy paws poussie pias passe passee pass paseo pase paise paisa puss opus pups upas