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.
folks folksy folkies flacks flakes flecks flicks flocks flukes flics flocs flogs flags falx flax flex flux
folks holks yolks balks cloaks bullocks elks flocks folksy blocks hulks calks killocks mullocks bollocks polkas relocks rowlocks sulks talookas tilaks whelks shlocks yelks bulks kulaks looks palookas locks hillocks leks beyliks ilks caulks milks kliks pollocks baulks relooks silks talks taluks walks chalks shylocks clocks blokes bilks
folk folkie folky flak flake flakey flaky fluke flukey fluky folic