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.
crits caritas curites grits carts cowrites cruets carets cartes curets griots courts crates kraits curtsy carats curates creates carates carrots cardias curtsey croutes curtesy crowdies courtesy corridas curettes corodies grids karts creds grots cords curds cruds cards courteous corrodies crudes kurtas creeds gratis cairds greets karats greats grouts credos groats crowds korats quirts grates krauts grides quarts quartos grottos karates garrets garotes quartes garottes garrotes grottoes keiretsu keratose corrades queridas corrodes garrottes
writs crits frits territs worrits grits merits brits britts courts ferrets grids carets jerrids ritz verites fritz burets veritas quirts carats peritus riots girts heriots hurts barrets pyrites iritis airts caritas farts frets morts karts nerts borts harts certes darts shorts cherts chariots burritos warts trots traits tortes korats tarts hydrids drats diorites rewrites quartos sorites curets karats parrots ports hybrids barites norites verts carts marts fortes kurtas rites quarts arts jurats artsy frites hearts rots orts curites carrots jerids pierrots rets curtsy raitas murids fritts quartes berets forts rids boarts bruts ruts cowrites bruits turrets ferrites fruits writes rats cartes trets griots virtus fortis whorts aortas brats lariats grots vertus neuritis garrets kraits frats irids yperites parts cerites sciurids sorts derats dirts droits tarots terrets tortas torts prats worts charts shirts yurts
crit caried cart carte crate cried curite curt grit gritty acrid scried