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.
diarist direst driest dearest drest durst tarriest teariest triste turista tourist dourest touristy tourista trust tryst truest trusty tryste dressed drowsed triacid trustee
diarist barista beeriest aeriest miriest purist nearest searest leariest lyrist karst driest dearest teariest goriest jurist tourista veriest triste hairiest wariest fieriest wiriest eeriest charriest firriest christy burriest wriest wrist grist arista aristo aorist mooriest rarest priest sorriest leeriest merriest querist tarriest barest aurist tourist crista touristy verist turista hoariest weariest wristy chariest airiest cheeriest furriest yarest