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.
eluder elder elater elytra
louder colluder eluder lauder deluder solder moulder polluter melder older glider molder cloddier bleeder lewder gladder clowder ladder gilder bolder killdeer balladeer milder leader shoulder wilder lieder flooder loader leadier builder guilder soldier lader clouter colder collider saluter welder reloader slider caldera golder pleader alder plodder mouldier moldier gladier bladdery blader bouldery fielder polder coleader sledder holder fluter wielder bowlder aulder folder bladder cloudier balder elder gelder bloodier boulder flouter solider diluter welldoer wieldier shielder yielder
elude eld elide elodea eluate elute