The Tetenal Neodyn developers later became Neofin, although I don`t know what the differences between them were. Apart from TFX-2, Neofin Blue is the only Beutler type of developer that I know of that is currently available.
Paterson Acutol and FX-39 are described as high-definition developers, but whether they were/are of the Beutler type, I don`t know.