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.
coitally coital coattail caudally cutely catalo cuittle cattily quietly goutily cattail cadelle cattalo caudillo godly cattle caudal caudle coddle cuddly cuttle goodly kittel kittle
tally vitally fatally totally coitally retally tall tidally ideally stall modally feudally mutually medially telly radially dally ritually caudally stilly nodally dually