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