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.
neuritis nerts nereids norites nereides nerds nertz nurds nards
iritis neuritis cowrites britts hearties fruits frits verites bruits fortis frites forties ferrites merits ferities burritos riots parities peritus pyrites rarities cerites sorties dirties territs worrits charities kraits verities curites heriots griots lariats mortise brits barites writs rotis writes grits fritts rites veritas caritas crits gratis norites parties purities yperites rewrites sorites diorites droits traits chariots shorties