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.
cheekless checkless chuckles chicles shekels sheqels shackles
cheekless keyless leakless wickless wakeless deckles sockless reckless backless beakless feckless heckles hookless cookless keckles keelless legless luckless knockless neckless peakless pegless rockless suckless tackless weeklies checkless yokeless