nikon 16-85

Hi I use the Nikon D500 in Nauticam housing. I currently own: Tokina 10-17 Nikon 60 Nikon 105 I want to add a mid range lens one way is to use my 60mm for mid size fish too or to add one of those: Nikkor 16-85mm Sigma 17-70mm C I would like to get your advice Thanks, Hezi