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.
backless beakless buckles beagles boucles bacalaos bogles bugles begalls boggles bugloss beguiles booklice booklouse
backless neckless cheekless reckless hookless checkless luckless suckless knockless tackless leakless cookless beakless peakless rockless sockless feckless wickless cackles huckles keckles coalless kales cockles sicklies recoilless wakeless tickles mickles pegless weeklies jagless muckles tackles knuckles heckles shackles keelless eggless deckles chuckles wigless legless egoless mackles fogless pickles galleass decayless sickles tugless ruckles buckles hackles goalless nickles suckles skilless keyless yokeless