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.
zerks sarks cercus seracs
berks jerks perks yerks merks zerks harks borks wrecks mercs markas larks carks porks corks freaks parkas ergs groks creaks breaks narks parks arks dirks drecks taroks turks works charks sharks shrieks quarks murks lurks wreaks phreaks irks reeks creeks barks marks birks araks bergs kirks forks burkes mirks burkas breeks quirks sarks darks dorks dreks treks warks charkas chirks shirks recks