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.
bleaks blacks bulks bilks balks belleeks blocks blokes belgas baulks belugas beyliks bowlegs bollocks bullocks blocs blogs beylics
leaks bleaks shellacks whelks tilaks talks slakes pollacks kulaks cloaks clacks calks flecks flakes flacks elks belleeks blacks balks leks leeks lakhs lakes lacks cleeks gleeks placks slacks sleeks telegas walks chalks yelks