Hope my reply can help you. Although there is no direct connection with shopify, I can share my experience with you.
I wanted to integrate payment methods for my online store, so I chose to cooperate with a third-party payment company called Silkpay. They will provide you with corresponding services according to your needs.They are experts in payment solutions. They will help you integrate payment solutions and provide different payment plug-ins, includingvisa, mastercard, CB, Alipay, Wechat pay etc.