Undetectable Proxy or VPN Protocol

Is there a safe way for creating a proxy, tunnel, or VPN that cannot be detected by the datacenter or ISPs?

I’m living in an oppressing country, but I’ve access to a VPS with less regulated access to the Internet. I was hoping to find a secure protocol for tunneling my traffic through that VPS without them knowing?

Speed limits and traffic reshaping (like connecting and disconnecting it to look like web browsing burst traffic) are not an issue. I’m just looking for a protocol that can be easily and quickly set up.

I’ve heard that OpenVPN does not limit the ports that can be used, but I’m not sure if that’s enough. I’ve also heard that WireGaurd has built-in tools for reshaping the traffic.