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.
posed poised pseud pissed postie posset pseudo passed paused posada peised post posit paste paced piste poussette peaced peseta pesade pastie pieced passade piosity pst hypoacid past pest psst
hosed rosed nosed loosed goosed noosed posed roosed dosed kissed housed noised issued lysed paused mossed feased dissed mussed pissed moste phased vised based sued roset reissued gessoed missed fessed biased cussed bowsed massed chowsed cheesed chased wised toused tissued tawsed dowsed dossed sassed cosied soused peised ceased physed moussed oozed reseed visaed hayseed boozed daisied poised bussed guessed hissed busied cased reseda roused fused bossed reused passed leased bused boused gassed eased coset fussed biassed moused loused viseed mused liaised pseud hoised sussed caused seed lassoed messed rased raised gussied cessed lased guised disced seised jessed doused dozed teased tossed used wissed chassed choused yessed
pose posse popsie paseo poesy pois poise poos pase poussie posy pows apos apse epos popes pops popsy