Last year in March SAS EuroBonus and American Express ran a special promotion to attract new customers. This year, Bonus 25% SAS EuroBonus points promotion campaign is a bit earlier and valid from February 16th to February 28th.
You need to use special invitation links, they are provided for each type of a card below:

0 first year fee

0 SEK first year fee

Traditionally, I would recommend getting SAS EuroBonus American Express Premium Credit Card.
Under current promotion it is completely free for the first year, with a potential of receiving up to 20 000 SAS EuroBonus extra points on your account within the first 3 months after spending 15000 SEK within 3 months.
SAS EuroBonus American Express Premium Credit Card also comes with Amex 2-4-1 voucher for all StarAlliance flights, and it’s a great discount on points redemption.
Which SAS Amex card pays off for you?
Compare Classic, Premium and Elite with the points calculator, then apply by invitation for the highest welcome bonus.
Contains referral links.