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.
chutist chattiest shittiest shadiest shoddiest
autist lutist chutist outsit pettiest guttiest quietist meatiest jettiest mutest knottiest nudist nettiest pottiest hootiest goutiest rattiest ruttiest zootiest dottiest duettist tautest wittiest outsat haughtiest cattiest fattiest nittiest nattiest cutest outset bittiest battiest batiste matiest footiest mitiest gnattiest nuttiest chattiest peatiest feudist pietist poutiest rootiest sootiest dotiest doughtiest tattiest whitiest shittiest