Here are the containers I use

Portainer

This is run directly on the host machine... not through portainer itself. This is the only container I run directly through docker. Full guide from portainer

docker run -d -p 8000:8000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce:latest

Make sure to update the volume to be where you want to store the data (especially if you're using a mounted NAS/DAS

Cloudflare DDNS

version: '2'
services:
  cloudflare-ddns:
    image: oznu/cloudflare-ddns:latest
    restart: always
    container_name: cloudflare-root
    environment:
      - API_KEY={redacted}
      - ZONE=name.tld
      - PROXIED=true # I proxy everything through cloud flare so my home IP isn't exposed
      # This sets IP address for the root name.tld
  cloudflare-ddns-abs:
    image: oznu/cloudflare-ddns:latest
    restart: always
    container_name: cloudflare-xyz
    environment:
      - API_KEY={redacted}
      - ZONE=name.tld
      - PROXIED=true
      - SUBDOMAIN=xyz 
      # This container doesn't handle multiple subdomains, nor wildcards...
      # So I have to run a different container for each service that's on its own subdomain. PITA

Cloudflare zero trust

1. Here's the guide from Cloudflare. It's all managed in their dashboard
2. I just have a one service exposed to the WAN that needs auth.
3. Create an application
4. For the access policy, I just use OTP with a long session duration since I'm the only user

nginx proxy manager

Management and setup in the app is fairly straightforward, but depends on your local setup.

Here's part of the stack I use:

version: "3"
services:
  app:
    image: 'jc21/nginx-proxy-manager:latest'
    restart: unless-stopped
    ports:
      - '80:80'      # Public HTTP Port
      - '443:443' # Public HTTPS Port
      - '81:81'       # Admin Web Port

Might be an issue with port forwarding on your router