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.
vaunter venter fainter vanitory funder vender founder venture venturi fender finder fonder vendor foundry
vaunter haunter mounter saunter chaunter daunter bunter shunter taunter counter chunter hunter punter gaunter bounder quainter maunder jauntier canter lintier santera entera keynoter enter launder snoutier chanter center noter tentier montero neuter minuter funder sinter daintier painter reinter inter winter hinter uniter lientery santero sounder under rentier linter niter country gauntry hounder cointer mintier venter banter minter rounder tenter tinter fainter renter jointer pointier reenter nutter reuniter runtier sunder daunder ranter founder wintery paintier wanter pounder pointer
vaunt vauntie vaunty vanity vawntie avant avaunt