New payment method required on Magento 2 shop

Per 30th of september, a much used payment method (Klarna, pay in installments and by invoice) will no longer be available for use by our customers, through our usual payment gateway. Therefore we are looking for someone who can make this payment available by implementing it directly on the site, as a separate button, other than the regular "pay" button that send customers on to the usual payment gateway. Klarna provide their own API, graphics and whatever else is needed plus a Klarna module for magento 2 already exists, which might be an even easier solution, we just need someone who has a knack for setting up such things on a customized Magento 2 shop. Our thought was having a button next to the "pay" button, which sends customers to Klarna's own payment choice page.