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.
cateress caters catteries cauteries coaters coteries gaters cadres cauterize couters cotters gaiters cutters cooters quatres cuatros coutures catarrhs cottiers gauderies coders kiters gators codders cottars gadders goiters goitres gutters quoters quieters quitters
cateress dress tutoress steres ruderies readdress niteries mattress gauderies cauteries dressy duress tress tressy address batteries booteries butteries buttress eateries votaress votress headdress catteries coteries lotteries metres potteries redress stereos stress waitress
cater catarrh cattery cautery coater coterie cuatro cuter gater