Ions rhymes with:
brian's, bryan's, bryans, bryans', ghanaians, hawaiians, lion's, lions, lions', lyon's, lyons, mayans, orion's, ryan's, ryans, zions
Ions sounds like:
iams, iannamico, iannucci, iannuzzi, iiams, image, images, imasco, imax, imax', imax's, imes, imig, immanence, immense, imminence, immunex, immunize, immunizes, imus, in's, inaez, inaki, inc, inc., inc.'s, inca, incas, incase, ince, inch, inches, inches', incise, inco, inco's, ines, inez, ing, inga, inge, ingo, inhouse, iniga, iniguez, iniki, iniss, ink, inks, inky, inmac, inman's, inmex, inn's, innes, inness, inning, innings, innis, inniss, innocuous, inns, inns', ins, inscho, insco, inscoe, insko, iomega, ionic, ionics, ionics's, ionize, iowans, iwanicki, iwanski, iwinski