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.
eluant eluent eland elint eloined eloigned
eluant flaunty slanty sealant pliant planet gallant callant gellant gelant volante volant valiant fluent flaunt leant eluent blunt alant lunt lunet coolant plaint plant reliant slant diluent