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.
caid cad qaid cadi cade coati caddy caddie cattie gad cat cod kid cud kadi code qadi gait quad coda coat coed gaed gadi guid goad quid cued gaud cate gaddi kiddo cuddy coude cooed catty kiddy gaudy guide cotta cutie
aid caid qaid laid maid paid raid said ad id