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.
colts collets colitis colds clots cults collates cleats cloots cultus clouts culets coleads callets cullets collides colloids colludes culottes calottes gluts golds clads clods kelts kilts glutes gaults gloats glouts gleets clades caulds quilts clouds guilts galiots galoots gluteus gullets glottis gallets kilties galateas gallates galletas galliots galloots quillets galettes claddaghs qualities
bolts molts colts jolts dolts volts holts billets glouts halts flouts cullets hilts cults gilts jilts allots ballots bolds loots lotus bullets holds lilts poults lits belts pallets bailouts pelotas maillots violets gloats clots mullets millets alts helots rillets shallots wolds willets wallets tilts kelts deltas zealots slots slats sellouts salts celts relets lets plats pullouts melts lats pilots faults galliots owlets voltes filets milts galloots fallouts mallets colds culets gelts cloots moults kilts quillets molds flotas flats quilts floats piolets cultus clouts lotos lotas pellets fillets louts guilts gallets bloats collets felts flits callets howlets blats vaults gluts gaults lots pullets ballets malts galoots blots gullets blets valets olds galiots altos pelts palets folds golds reallots plots rialtos rollouts sallets saults silts slits sluts zlotys delts tallits toilets welts wilts chalets sheltas
colt coled acolyte culti cowled clotty coaled coiled cold colead clot collet collate collide collied colloid collude cooled could cult acold scold