Hello! I was also looking for an Asana integration for WordPress. Just like those in this thread, I still couldn’t find an affordable, specialized solution.
This led me to discover the Asana API, so I decided to build a WordPress plugin that integrates Asana tasks (I’m a professional WordPress developer).
You can learn more about my solution, Completionist, here: Asana for WordPress – Completionist WordPress Plugin
I really hope this helps anyone still looking for a solution! 