Who has best/ worst vert tops out there?

I don't think you'll find the correct rear window for a 2nd gen' Barracuda vert' in a aftermarket top.
That would have to be custom production. The aftermarket uses only a few generic window shapes/sizes in all of their tops.
There were OEM hard back windows made by Owens-Corning. Although rare and costly, they are a solution to the correctness issue.