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.
seriates serrates cerates cerites sorites certes sorties syrettes sureties sorts sardius sarodes sciurids sards sords surds sarods
variates seriates muriates borates lariats narrates gyrates cartes crates barites curates quartes grates parities prates orates pyrites rarities cerates laureates writes karates sorites derates hydrates urates berates creates riatas ferities diorites aerates serrates curites rites carates ferrites frites phorates verites deaerates verities treaties cowrites ferrates rates norites parietes pirates purities yperites rewrites cerites charities