Self-Hosted Main

I currently have a server that I use for plex, torrents, kodi, smb, etc. Pretty much everything runs in docker. My router offers a dynamic dns service but I'd like to migrate away from it in case I ever get a different router.

The way it currently works, when I spin up a new service or docker container I go into the router and go to NAT Forwarding -> Virtual Servers and put in the external port and internal IP/Port. I don't know of any other port forwarding settings on my router.

I'm concerned about the security of my setup because at present I don't have SSL on any of my services. I also am concerned that this machine is pretty much directly exposed to the internet. What is the best way to migrate this to a more router-neutral config that's more secure?

Do I use Traefik? Nginx Proxy Manager? Authentik? A different dynamic DNS? Cloudflare tunnels? Getting everything up and running with docker was a challenge when I started but I feel pretty comfortable with it now. This part with the networking and security is what I'm still struggling with. Appreciate your help