I do not know of any other plugin implementations of Sierra Chart for Zorro. If you know C++ and sockets, you can always implement your own.
The other issue is that my debugger said that the crash was internally in Zorro.exe (not in the scope of my code), so that makes it a wee bit harder to debug in the first place. Even if the crash is elsewhere, my plugin can still be the culprit. And then if Zorro is the culprit, I might need to file a convoluted bug report. This kind of stuff is very time-consuming.
I see what you mean by time consuming. I'm not sure if you have access to the Zorro source code, but they should give it to you if you don't.
My plan for now is to write a basic bot that connects directly to the Sierra Chart DTC server. I have done socket programming in C++, but I will not attempt to write a Zorro plugin, at least for now.