I'm jealous of you and others in this thread that shared this path. I've unfortunately been dragged in the other direction: I was a happy i3/Linux user and now I'm coping with a multi-monitor Mac setup which stubbornly refuses to support workflows which I find to be very fast and efficient.

There are some tools (all $$) for Mac which attempt to replicate a tiling WM but Apple's support for it is extremely poor, affecting the quality of the tools.