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.
serifs serfs surfs serves servos ceriphs seraphs service zarfs sorghos surveys
serifs rifs sherifs sharifs curfs profs sheriffs zarfs kerfs wharfs tariffs surfs serfs parvis reifs refs griefs turfs briefs barfs arfs riffs griffs
serif ceriph seraph serf serve servo