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.
ground groined groaned grunt grind grand grinned crooned grandee grained greened grenade crowned crunode coronoid grant carronade garnet kerned craned corned gurnet kirned crownet crinoid coronet granite cairned granita grantee courant careened coronate courante couranto crannied guaranty
round around ground surround rondo frond phoronid ironed gerund crooned marooned pruned droned drownd