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.
collogued clogged colligate collocate cliqued calqued clagged cloaked clocked clucked collect colocate calked caulked clacked cleeked clicked glugged
dialogued collogued logged flogged clogged plagued slogged
collogue colog colloquia colloquy clog