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.
collate collet colt collied gallate collude collide clade cleat coled cullet coaled cowled culled called callet colead coiled cooled cullied colloid calotte galatea culotte galeate cult clot cold clad clued clout culti gloat glade culet cloot yclad could glute galled gaoled glutei goaled killed gallet kiltie clotty gulled gullet galleta gallied galliot galloot gullied killdee quelled quilled quillet galette
fellate gallate collate vallate bullate late maleate ballute ballade mullite velate alate galatea hollaed latte oeillade galeate folate plate relate slate solate delate tillite chelate paleate pileate foliate eluate palliate illite malate valuate violate blate elate phyllite filiate oleate gelate palate pollute ciliate slatey dealate dilate toluate cholate lat
cola calla coala collie colly coolly cullay col