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.
elater elder eluder elytra
later pleater dilater floater zoolater elater violater bloater slater bleater relater plater gloater billeter gleetier realter collator moulter flutier belter clouter fluttery halter guiltier jolter joltier flatter latter vaulter clatter filter quilter flattery platter falter glitter flouter plaiter milter delator chelator tilter dilator balloter slotter slitter slatier saltier reloader relator plottier blatter coulter lotter siltier blader cluttery palliator flytier coleader polluter leader miltier pelter alter valuator lader blottier loader littery glittery litter floatier plotter colter flitter maltier letter fellator vaultier palter clattery faultier platier blotter pleader kelter clutter looter liter violator melter haltere philter salter flutter loiter fluter allotter bolter kilter politer jilter lottery muleteer gauleiter saluter reletter molter blighter sleetier slittier sluttier zoolatry poulter fleeter diluter welter shelter