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.
scurried scried scarred scoured secured scored screed scared sacred squired sugared skirred squared suckered security scrod secret secrete skirret saggared saggered skywrite scart scrota squirt
carried quarried recarried scurried curried recurred decried skirred scried scarred curred queried garred cried corrida caried shikarred
scurry scarry scaur scour secure