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.
shaped chapped shipped shopped cheeped chipped chopped chapt chapati chapatti chappati
heaped aped japed gaped raped shaped taped soaped leaped caped reaped ped sipped hyped roped cooped couped hypoed gypped piped hoped jeeped napped capped seeped loped sapid poppied lipped zapped peed pipped doped sopped mopped knopped rapid gapped chopped yawped yapped shipped cheeped wiped whopped whipped whapped upped tupped toped tapped spued copped dapped lopped oped speed sapped rouped riped siped hopped gipped spaed beeped fopped hipped happed kipped dupped supped bopped pooped wrapped coped gawped pied peeped spied rapped vapid kepped apod moped pepped repped knapped cupped ripped louped looped zipped pupped topped souped sped copied lapped biped quipped dipped jauped nipped popped hooped typed tipped wapped wheeped whooped whupped chapped chipped duped mapped shopped yauped yipped
shape chap chape chapeau chappie ship shop shoppe schappe