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.
scries scurries scares sucres scores screes screws secures scars scariose skerries scarious scarce scaurs scours skiers squires sucrose sowcars secrecy squares soucars sucrase sackers suckers cicorees sakers skirrs sugars saggars saggers seekers seggars soakers saguaros
caries buggeries chicories puggries scries hickories cries knackeries mockeries quackeries kauries auguries curries fakeries quarries toggeries rookeries waggeries curies doggeries jaggheries decries vagaries recarries scurries chickories rogueries decuries cookeries bakeries beggaries kyries kerries jaggaries equerries piggeries rockeries carries cowries queries skerries gurries wiggeries jaggeries corries quaeres cris quires scores curios agrees figures cicorees kiers digress ligures puggarees daycares grues fiacres dekares cress egress pugarees liquorice cores uakaris lucres screws screes grees requires sucres shikarees puggrees cares kukris tigress aggress kris acres cures licorice ogress gores hegaris pugrees kerrias decrees greys daiquiris skiers degrees crews regress caress taquerias nacres scares eagres squires ogres hypocrisy chickarees secures squares kauris decares agrias shikaris
sacra scar scare scarey scarry scary score scoria scoriae scree screw screwy scry scurry sucre escrow