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.
batterie batter battery battier bitter better butter beater boater baiter buttery bittier biter badder beader bettor bawdier beadier bootery bider bawdry bedder bidder budder
batterie coterie niterie dearie terai hatteria hysteria stere stereo striae tetri uteri
batteau bate batt bateau battu battue batty butte abate bat