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.
snacked snaked sneaked snicked snagged snooked zincked zonked sunket snugged snogged scincoid sonicate sancta snowcat zincate zincoid
snacked knacked shanked tanked zincked snicked sneaked snaked ranked panicked hanked banked nocked nicked necked naked knocked wanked yanked
snack snake snakey snaky sneak sneaky sneck snick snuck