For me it’s traefik. It’s took me a while to get it working, but it’s actually really easy now. Setting up container access with labels is very convenient!

Traefik, because I can configure it with labels on my containers and don’t have to deal with the proxy config every time I add a new service.

Used nginx for years but it’s starting to show the signs of its age, same as Apache did a few years before that.

For me it’s https://nginxproxymanager.com/ it’s just so easy to setup and use. One docker command and you’re up and running with a nice webinterface to manage access to your docker instances with ssl. I heard good things about Traefik too but I have no personal experience with that one. NPM does everything I need and if it ain’t broken… :)

Edit: because people love screenshots https://nginxproxymanager.com/screenshots/

I use NGiNX and have ever since I started. It just works and is easy to configure.