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.
sikes sickies sickees sicks sokes skees sykes skies sakes skews sikas sickos segs skis suks skas secs sics socks sucks skuas sacks souks sooks sakis soaks seeks segos segues saigas six soukous sukkahs sex zaikais sequoias sacs sags sexy suqs
bikes pikes dikes kikes likes hikes sikes tikes mikes yikes lakes hockeys hickies okehs kues biggies hookeys cakes hokes jokes cookies shikse rickeys hickeys quickies buggies luggies haiks moggies quicks cokes piggies cookeys mokes geckoes quakes rakees fakes rookies dekes bakes bookies duckies yoicks sokes shakoes shackoes chokes chickees wakes ukes tokes ackees sickees tekkies dykes keys pekes sheiks dickies pokies kaiaks skews keas hackies sicks hawkies wricks micks rakes paiks hawkeys nookies cukes kaes bikies buckoes aggies ekes pukes picks rekeys baggies pokes jockeys hackees akees kicks jaggies pikas sikas hakes hicks pekoes sickies licks haikus jakes kegs fykes gawkies ticks jukes nicks raggies takes hookies skies hoicks pokeys okes pikis sakes nukes jackies luckies ricks lackeys mickeys skees rykes veggies dickeys sykes dicks doggies dukes tikis tykes wackes wicks chicks chuckies shakes sheikhs shiksa makes yokes
sike sake sick sickee sickie sicko sika skee skew skiey soke syke askew