Reference: https://verfasor.com/how-to-setup-shadowsocks-server-on-digitalocean-vps/
Buy a VPS with a foreign IP address.
Check out:
DigitalOcean
BandWagon
Vultr
...and the list continues. The point here is to find a server with a fast connnection.
(Beware when choosing the image of the server. The following tutorial is based on Ubuntu system.)