Winter climbs around Bernina, Diavolezza / Sankt Mortiz in the Alps

Hi!
I am spending the weekend in the Bernina area. I am trying to find accessible winter climbs (easy mixed climbs or alpine climbs that are doable in winter with good weather). All I see for winter is ski and ski touring. I can do splitboarding but I would like to focus more on the technical, climbing part.

Thank you in advance for the hints!