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.
tourista tourist turista touristy triste torsade dourest tarriest teariest torosity tryst durst trust tryste trusty truest driest dorsad diarist triacid trustee drest direst tercet traced triced
arista turista barista crista tourista veriest querist goriest mooriest merriest beeriest leeriest tourist tarriest frusta touristy hoariest aristo firriest fieriest eeriest aeriest furriest wrist weariest chariest cheeriest purist verist wriest hairiest triste airiest aorist miriest lyrist leariest grist cristae aurist diarist aristae burriest wristy jurist priest sorriest driest teariest wariest wiriest charriest christy
tories torsi tours stories stoures stours