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.
parge purge parridge peerage perigee porridge porgy pirogi pierogi porridgy
barge parge targe charge marge sarge large urge burgee ragee gurge rage forage garage merge purge dirge serge forge marriage barege courage barrage triage surge dragee carriage gorge mergee moorage peerage verge mirage bargee ferriage borage
par pair para parae pare pareo pareu pariah parr parry pear spar spare sparrow sparry