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.
peritus pyritous yperites perdus pyrites periods perdues pierrots purities parts parities parietes prats ports priedieus prides proteus parrots pretties proettes prods pards pirouettes prudes purdas prates parades parados pardahs parodos parties pirates proteas purdahs
peritus bruits virtus iritis writes writs vertus brits britts barites burritos pyritous rewrites neuritis sardius lariats diorites grits territs curites worrits cowrites rites ferrites pyrites virtues heriots veritas fruits verites frits frites fritts norites yperites riots merits cerites kraits sorites griots droits crits traits caritas chariots
periti pert parity peart perdie peridia period purity pyrite yperite sprit sprite