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.
bemas beams bimas bemuse bimahs bams biomass bums bombs booms bimbos biomes bombes bamboos bimboes
bemas nemas mas ems geums moas limas emus lamias bimahs gummas fems omasa amahs rumbas seems sambas llamas camas hems amass amias poems gamas bimas zamias shamas teems semis dumas demos mamas deems somas gambas mommas reams lumas comas memos mammas nomas beams haems biomass commas loumas amas gems mays gammas mems seams gamays lamas pimas mambas neems caeomas emes semes camass cymas memes pumas lemmas neums ylems femes maws pneumas hemes mass limbas masa rems hyphemias summas zymase demes maes doumas teams simas chemos shammas
bema beam beamy bima bimah abeam