Olsson rhymes with:
bolson, coalson, colson, dolson, folson, gholson, golson, holsten, joelson, jolson, molson, ohlsen, ohlson, ohlsson, olsen, olson, polson, toalson, tolson
Olsson sounds like:
ohlsen, ohlson, ohlsson, olajuwon, olesen, oleson, olexson, olguin, oligocene, ollison, olsen, olshan, olson