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.
parietes parities pyrites parties parts parodies yperites proettes purities prides prates priedieus proteas pirouettes proteus peritus parrots parades pirates pyritous pretties protease paradise pierrots proteose ports pards prats prudes parados pardahs parodos perdues periods prods perdus purdas
parietes ferrites syrettes seriates cerites yperites proettes variates muriates aretes ariettes barites barrettes burettes writes rites frites verites cowrites creates curettes curites laureates norites pirouettes pyrites rewrites certes sorites diorites
paired pardee pardi pardie pared parity parred parried pride pried priedieu spared sparid