Setup Shopify payment for a non-US citizen

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Hi guys.
I am about to launch my first Shopify store, but I just got to realize Shopify payment and stripe are not available in my country(S.Korea).
I am wondering how non-citizen fellows are dealing with this issue. I am posting available payment services here.
Filing LLC in the US is a bit expensive for a beginner so(around $500-600), I would like to find the cheapest way first. 
The below image shows which payment services are available in my country.
Shopify Payment_provider(Korea).JPG
Any advice would highly be appreciated.
Thank you so much!
I am thinking of using a cryptocurrency payment service like Bitpay. I am also wondering if it worked out for anyone of you guys as well!