Ostia rhymes with:
anacostia, anacostia, hestia, izvestia, nestea, philistia, anacostia, hestia, izvestia, katia, nestea, philistia, poinsettia
Ostia sounds like:
oakite, oakwood, oct, oct., octet, oest, ogata, ojeda, okada, okayed, okdo, okuda, oozed, osgood, oshita, ossetia, ost, ought, oughta, oust, ousted, oxide