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.
lassoing lasing leasing liaising lacing lazing losing lysing loosing lousing
lassoing sing song goosing passing hosing massing cussing reissuing rising loosing casing raising musing choosing dozing issuing tossing sousing poising dosing leasing peising ceasing mousing easing chowsing chasseing using teasing dousing discing sassing rosing biassing bussing lasing guising nosing missing lousing noising busing viseing phasing fusing fessing feasing wissing hissing biasing posing fussing bowsing liaising causing roosing hoising kissing guessing suing reusing moussing rousing basing bossing visaing jessing losing noosing bousing vising boozing pissing gassing pausing lysing oozing mussing seising rasing dissing mossing dowsing dossing housing tawsing tissuing sussing tousing wising messing chasing cheesing cessing chousing yessing