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.
sailor sailer salary sealer siller sillier soilure sealery sallier slur slier solar ceiler seller slurry ciliary solaria
bailor jailor tailor sailor colour mailer galore hailer jailer flour valor calory hilar moiler toiler filer valour oiler pilar pylori ceiler coiler fluor velour dolour glory couloir floor flora lory color filar boiler bailer lour viler clour tiler lore veiler sailer miler nailer pallor pillory railer dolor tailer wailer
sail sal sale sall sallow sallowy sally saul scilla seal sill silly silo soil aisle