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.
rubellas rubeolas rubels rebels rubles rebellious rebills roubles rubbles robles rabbles reboils ribless robalos
rubellas belays belles bells abelias cowbells gabelles lobelias obelias rubeolas
rubel rubella rebel rouble rubble rubbly rubeola ruble