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.
pardi pardie pard parodoi pardy pared pardee paired parity perdie parody parred parade pardah parried prod part peridia priedieu purda perdy pride pried prude peart proud pored party preed perdu pyrite purity purdah poured perdue parrot period periti protei peered pureed purred parroty yperite pert port prat
pardi birdie oared cared gardai cardia pardy beard perdie geared caird hardy sard reared seared fared dared heard fard tardy feared teared eared wared burdie chard farad shaird laird shared nard yaird lardy board radii hoard liard pard garda guard cardio pared pardie rared giardia card hared sarod roared soared roadie radio tardo arid tared hard ward barde weirdie bared chared bard shard lard sheared neared yard
par pair para parae pare pareo pareu pariah parr parry pear spar spare sparrow sparry