Assuming you don't intend to stay with ST and just don't want your miles go waste, I'd probably be considering Flying Blue. You might get enough to redeem for an intra Europe promo award with no YQ.

Check out Alaska's Mileage Plan for Emirates and Korean flights. In case you're not about to fly EK again in the near future, you'd probably never collect enough for any reasonable redemption in Skywards but you might get somewhere with Alaska since their mix of partners is fairly good.