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.
slung sluing sling slang slunk soling sailing soiling siloing sealing seeling selling soloing slank slink slinky ceiling celling selenic
lung slung clung flung holing filling baling belling hauling valuing galling killing lunk clunk coiling vialling tiling wyling gluing soling flong muling bluing clang falling flunk dialling milling cowling quilling plunk mewling guiling helling fouling walling shoaling shealing tolling kalong cluing gilling jelling ling bolling ceiling quailing yelling wawling seeling puling sluing polling slang piling toiling shauling mailing slunk rolling rilling oiling reoiling dealing tailing wailing whiling shieling yawling fueling lolling veiling mauling heeling paling railing felling kneeling dolling foiling pealing hailing bulling nilling fling duelling ailing knolling hulling whaling willing sailing fulling hilling doling bowling miauling howling lalling riling ruling poling cooling wauling shelling tooling oolong mulling alang nailing malling vailing shooling bailing tilling coaling vialing fooling haling feeling balling voling vealing billing fuelling bawling filing knelling gulling calling nulling heiling gelling along boiling failing foaling sling chilling lang peeling belong goaling long cling dueling selling daylong sealing klong jailing pulling dulling gaoling fowling healing wheeling moiling yealing soiling shilling pilling celling roiling reeling pooling palling toling shawling welling culling melling lulling quelling keeling dialing telling waling wiling yowling