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.
saltier salter saltire saluter siltier slatier sluttier slittier sleetier slater slider slotter solider soldier slitter salutary soldiery solder sultry sledder zealotry zoolater solitaire
faultier miltier siltier saltier maltier guiltier joltier vaultier sleetier slittier slater billeter floatier violater glider moldier plottier jilter diluter soldier elater zoolater philter melter belter falter haltere coulter bolter saltire slatier slider sluttier solider dilater tilter liter wieldier flutier welter jolter moulter halter balloter saluter gleetier vaulter alter kelter palter polluter molter salter kilter colter blottier later pelter platier politer poulter relater collider flytier realter quilter fluter filter mouldier milter plater shelter
saltie salt sallied salty salute sault