ShadowSOCKs

It depends on what you are trying to do... There are many tunnel / reverse proxy routing services like https://www.cloudflare.com/products/tunnel/

Here's a list https://github.com/anderspitman/awesome-tunneling

You can also get a super cheap vps, do some ssh reverse tunnel magic and go along with your day.

I use gluetun for vpn proxying, it's rock solid and has shadowsocks and tinyproxy (I run two instances, one localish openvpn and one out of country wireguard, gluetun don't care), that gets around port opening.

Is there a specific reason you're looking at shadowsocks? The original developer has been MIA for years. People who used it in the past largely consider it insecure for its original stated purpose

trojan-gfw is a better modern replacement. However that requires a certificate in order to work. You can easily get one via lets encrypt.

At this point, let Shadowsocks, obfs, and kcp die a graceful death like GoAgent before it did.

Why not Tailscale? I think it can do exactly that and it is very easy to configure.