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.
burritos brits burets bruits britts bourrides burdies brights barites barrets burettes borts brats bruts burds barrettes birrettas berrettas broads boarts berets brides brutes braids broods borides berates barytas hybrids borates byroads barytes birdies birettas berettas birds bortz brads bards bardes beards boards breads bredes breeds
burritos barites heriots caritas riots rites veritas writes writs rotos periods pyrites yperites neuritis cerites lariats diorites kraits territs griots worrits crits ratos britts peritus verites iritis fritts frits fruits ferrites bruits frites norites pyritous brits merits rewrites quartos sorites grits droits curites traits cowrites chariots
burrito berried bourride burdie buried burred