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.
hounder hander hinder hunter handier haunter hinter
founder launder funder bounder daunder sunder under rounder pounder maunder sounder hounder joinder cinder minder bender daunter bunter lender fonder mounter sonder foundry lander counter taunter bendier sundry mender tindery shunter chaunter pander windier laundry kinder gender pinder haunter gaunter endear meander ponder ender sender cindery hander dander sandier wander gander snider binder reindeer vaunter zander hunter dandier nuder bonder bander sander tender vender bindery fender finder hinder punter denuder render saunter tinder tundra undoer handier winder randier wonder chunter yonder