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.
torosity touristy trusty tourist tourista trust tryst triste tryste truest torsade trustee turista tarriest teariest dorsad tercet triced
curiosity cariosity morosity porosity serosity torosity ferocity frosty frowsty varsity jarosite prosit
toros torose tors torus troys torso trousseau torsi triose trios tours torrs torse torous tores toras tiros taros trois trows tyros