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.
sciurid sciuroid surd sired soured serried sard sord sarod cered sourdough sered sored cerite sarode seared soared surety cirrate seriate
sciurid irid buried virid viroid juried lurid murid neuroid sciuroid rid urd