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.
tamis tams tammies tames teams tommies tummies dams toms daimios teems dames times tombs tomes demies demise dummies timeous tomboys tumesce dims doms
amis tamis mis ramies jambs kames homies camise jimmies dummies bams beams remise lames chemise shawms pams shamois whammies camos chamiso amiss fames tommies rummies gambs amus immies amies yams shams shames chamois chamisa wames tams mummies demies koumiss dames zombis lams hyphemias jams hames commies cames lamas ramus loams gams mamas foams roams semis mommies pommies seams jemmies camas gimmies maims miso amias mammies mamies lambs mise cammies haems iambs cams amas jammies names reams camisa hams kumiss gamas miss zamias aims daimios games remiss tames roomies rams tammies llamas tummies koumis gaums demise dams lamias chamise chammies chams teams shamas shammies wamus shamos shamus whams shimmies yummies