I kind of want to make a reference page / table where I attempt to catalogue every file-extension that is close enough to a standard .zip archive that at least one generi archive manager can open or extract it after renaming the file extension.

There really isn't one that even tries to be comprehensive and include even slightly obscure file formats. At least not all on ome page. Even then, I'd also want to specify any additional mandatory internal directory structures too, since there are similar (ab)uses of .zip which can be categorized together too.