Kosberg rhymes with:
ainsberg, augsburg, cannonsburg, carlsberg, duesberg, ellsberg, ellsburg, gaithersburg, galesburg, gettysburg, ginsburg, ginzberg, greensburg, herzberg, holidaysburg, jewelsburg, kanegsberg, kaysersberg, koenigsberg, kongsberg, kozberg, landsberg, leesburg, parkersburg, petersburg, ransburg, regensburg, romesburg, salzberg, salzburg, st_petersburg, twinsburg, wensberg, williamsburg, williamsburgh
Kosberg sounds like:
kasparek, kasperek, kasperski, kasprowicz, kasprzak, kasprzyk, keepers, kippers, koperski, koppers, koppers', koprowski, kovarik, kozberg, kuberski, kubrick, kubrick's, kuipers, kupres