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.
floaty float flat fluty flota flout folate faulty fealty flutey flauta fellate filiate foliate fallout flit felt fleet fault flyte flood flute fluyt flite filet fillet foaled vaulty velate folioed vallate valuate veloute violate velleity
floaty clotty slaty bloat blotty fealty float jolty laity lealty gloat malty platy plotty realty salty slatey zloty
fila filo flaw flawy flay flea floe flooey flooie flow foal