Here's what rhymes with ona.
ma na gnaw maw nah law la saw raw da ha jaw sa pa ta wa ya ja ka ra ga moi paw thaw waa cha faw haa ois sha shah aha baa bah hah haw rah yaw caw sough soh rawer draw qua claw fhall flaw bra inlaw spa trois ulna bois chamois blah pasha craw guffaw macaw slaw pshaw straw alga oversaw squaw travaux hurrah overawe voila lockjaw panama pawpaw mackinaw loofah markkaa geegaw foresaw patois fuchsia redraw baccarat jackdaw uninstall overdraw southpaw outdraw borzois bourgeois withdraw scofflaw