These guys are available for preorder from Nexus miniatures:
https://www.ecwid.com/store/nexus-miniatures/#!/Sharp-Distinction-Pre-Order-Page/c/21451007Although they are pulp/cthulhu inspired, the Deep Ones look like the Fallout 4 Mire Lurk Kings. Shame they don't have tails.
However, there is a Acolyte who looks like a Goa'uld in the range, so might pick up one of those.
I do need some Mirelurk Kings - any one know of any good figures? There's not much in the list of minis.