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.
pardy parody pard perdy pared party pardi parity parade pardie pardee paired pardah parred parried parroty parodoi part prod peart prude pried preed perdu pride proud purty purda pored purred pureed pretty purity peered period parrot perdie perdue purdah poured priedieu pert port prat
hardy lardy pardy tardy wared shaird tared weirdy barde teared cared caird hoard bready pardi farad heard lard guard reared yaird shared laird corrody bared bard liard neared oared pared party rared roared sarod soared garda tardo chard arty fard shard hard wordy sard ward faraday beard eared parody perdy ready board geared card tarty chared arid seared grody hearty pard nerdy nard curdy sheared corody dared hared feared fared warty yard
par pair para parae pare pareo pareu pariah parr parry pear spar spare sparrow sparry