Means to privately connect to my home server other than Tailscale?

Wireguard is blocked in my country, so I no longer can use Tailscale or other Wireguard-based solutions. My home server is behind a NAT. What other ways of secure private connection can I use?

Can you switch to IPv6? My ISP NATs me on IPv4 but I’m clear through on IPv6 and so that’s how I run everything.

I’m assuming the NAT is your ISP’s, if it’s yours then ignore me.