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.
cloaked clocked clacked calked clogged clucked clicked caulked clagged cleeked colocate collocate collogued calqued cliqued glaiket gleeked calycate colligate collect glaikit glugged
cloaked blocked shylocked chalked talked slacked relocked clacked calked holked hillocked flocked flaked flacked blacked lacked balked looked locked leaked laked clocked relooked slaked walked shellacked yolked
cloak clack cloaca cloacae clock