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.
coulis coulisse cullis colies caulis cols cullies coolies collies coulees cauls cools culls colas cowls coals coils coles coalas caules coleus gullies colossi cullays goalies callous guls quillais colessee coalesce coalless koels calls clues gulls claws cloys kolos calos colza gules goals close glias kohls clews gaols class kolas clays quillaias quills quails callas koalas calesa classy guiles clause callus quells quolls gulleys callees callose gallies gallous queleas kellies killies galliass goalless
coulis caulis pulis lis caules cauls pules pilis gallies jouals bellies miauls lulls jellies hollies bialis hulls belies poleis sallies guls ghoulies valise follies bialies boules killies helios aaliis flies mauls fouls collies ballies allies nellies billies polios fulls chillis shuls chilis challis doylies woollies willies wellies doilies dulls dellies ulus tellies dahlias tallies wallies duels fellies gullies doolies olios lilies rules mollies dallies pulls mules sulus goalies sillies sulci realise pulse puls cullis gulls culls polies leis muhlies coolies palais nulls polis colies cullies joules bailies glias fillies ceilis follis lies hauls gillies hulas mulls buhls louies ghillies bullies aiolis louis folios holies quillais lulus kellies gules lollies dailies bliss dollies plies alias relies bulls fuels duals mealies sullies jollies sauls souls rallies molies walies ghouls wheelies chillies shauls chilies challies doulas woolies wauls dulse dillies dulias delis tules tallis sylis yules
coulee col oculi aculei cullay coyly cooly coolly coolie cool coly colly cole collie cola coil coaly coala coal caul cowl cull cully coquille scull