Owner ST76 5/0 trebels are pretty much the same size at the ST66 in the same size, just made a bit more heavy duty. You can try big singles like Owner SJ41 13/0, Shout Kudako 7/0 or Fisherman Shiden 13/0 to use as baker (twin hook) rigs if you cannot find any big sized trebels. Most of the tackle shop sponsors here should sell these single hooks.
If youre wanting trebels, again, what size are you big ass poppers? You might need to go something like a Decoy GT 10/0 which are for big big poppers or Gamakatsu GT Recorders. It would also help to point you in the right direction if you let us know what kind of poppers you intend to use (size, weight etc) as to which hook we can recommend, as nearly all the manufacturers hooks differ in sizes. A 5/0 ST66 will be a bit bigger than a 5/0 Decoy for example.
