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.
tryste tryst triste trustee trust truest trusty tressed turista torsade trussed tourist touristy teariest tourista tarriest drest durst driest truced direst triced traced dearest diarist dourest dressed drowsed tierced torosity
tryste cristae jarosite trustee cerussite cerusite prostie periostea parasite crosstie creosote aristae resite horste hirsute verste bursate arrestee triste tryst christie
drys tars tarsi terse tors torse torsi torso trass trays tres tress tressy treys troys truss