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.
collide collude colloid collied collet cold cullied collate clade glide coled could called cullet cowled coiled coaled colead cooled callet culled killdee gallied gullied clod clad gold colt cloud clued cleat cauld culet glade yclad glede culti cloddy galled keloid gullet gallet gaoled gulled cloudy kiltie goaled killed calotte culotte gallate galleta galliot quelled quilled quillet
collide allude illite illude gillied jellied phyllite phyllode glide colloid killdee oeillade rallied slide tallied dallied toluide halide allied collude collied bullied bolide bellied ballade jollied cullied gallied phylloid gullied mullite pallid sallied dollied sullied tillite elide willied lid
collie colly coolie coolly col