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.
batons betons buttons battens boutons betonies battiness butanes badness biotins butenes boudins betaines bedouins botanise botanies bawdiness beadiness bittiness beduins botanize
tons phytons chitons rhytons nitons futons mutons betons newtons jettons phaetons batons jetons cottons boutons photons pitons moutons setons rattons buttons muttons cytons putons rattoons rattans tuns ketones tens quietens mittens lowdowns hoedowns patens guidons codons tones udons seitans dons biotins ratans sheitans adonis matins cutins donas titans stuns tonus fattens duotones cotans wheatens phytins witans heightens toons neatens downs satins rutins redons odeons voudons tans etnas rattens lattens ratoons latens tauons godowns lattins voudouns zeatins donsy towns radons mattins patins tautens kittens stones tins vodouns atones battens whitens pattens chitins shaitans showdowns
baton batten beaten beton betony botonee botonnee