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.
solano solan slain solon silane solion salon xylan salina saline saloon sileni sullen
llano solano elain elan eolian villain clan glean aeolian relleno plan silane solan blain slain xylan tolane ulan lallan alane blawn callan lain loan lino leno lean lawn reloan flan lane clean kalian plain plane alan tolan uhlan yulan
sola sol selah slaw slay soil sole solei soli solo soul