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.
draws duras drays drowse drowsy hydras douras durras derays hydrase drys dourahs dors dares druse dorsa dures duros doers trass toras doors trows trays drees dears dorrs dress durrs deers dries dross trews drossy deairs derris torahs hydros terais duress dressy terras dories diaries derries hydrous dowries durries dearies daresay dairies yttrias tars tors tres
braws raws draws craws ras crews phrase kerrias frass grays moras maras buras morass boreas mbiras vrows cerias douras brays grows eyras gerahs arrows boras hurrays rais varas horas crass cuirass areas brows arrays terras tiaras sirras sharias charas serais warsaw urase prows trows trays sorrows toras rase braes durras hydrase forays drays burrows suras morrows rows hoorays erase narrows sierras rays morays furrows brass lauras brews murras dourahs frows paras sirrahs prays norias borrows frays harass auras nairas ferias bras varias crows arias gyrase bewrays koras harrows hoorahs marrows hurrahs prase surahs derays rias praos jarrahs proas praus horahs serows grass barrows soras eras liras surras arras muras farrows duras hydras terais torahs trass trews yttrias ureas whereas choreas shrews yarrows