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.
vicarate vicariate figurate
carate karate vicarate regrate recrate ocreate cocreate carat carte crate create curate garote grate figurate vicariate karat migrate quarte picrate bigarade recreate ecarte decorate