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.
broods broads byroads burds birds bards brads breeds braids bredes bardes beards breads brides boards borides hybrids birdies burdies burritos bruts brats brits borts bourrides berets burets brutes britts boarts bruits barytes barytas borates barites brights berates barrets berettas birettas burettes
roods broods arrowwoods chorioids cheroots triodes hydroids sords periods corrodes sarodes roads rodes rods roots lords sheroots rotos aroids broads cords choroids chords crowds words byroads toroids droids erodes viroids sarods fords prods fiords parodos shrouds
brood broody broad byroad abroad boobird