Before this pandemic and work from home or teaching on Zoom, I wanted to create an online course. Having an online system and teaching online are two different animals here. One leading online via Zoom means you are teaching face to face in real-time. While Thinkific, it's all Asynchronous.
There are pros and cons to both formats, but asynchronous is much easier to deal with learners in some parts. I found Thinkific an easy platform to get up to speed and running in no time at all. As long as you have the course outline, curriculum, or material, it will be a snap. If you don't, expect a bit of a climb.