Pretty varied fishing makes it a scratch-head question! Fish from one foot or less, to 300 feet or more, with jigs in salt, and upper reaches of small rivers in fresh, learning about trout.
And there's a lot of species in each salty habitat too! And fish ashore and afloat. Fish sizes all over the shop too!
Maybe for salty flats and shallow estuary, a 1/8th, short shank wide gape No2 hook in heavy wire/light forged hook with 60 degree bend in thick minnow/chub style head. White head, thread, and Arctic fox tail, with pearl/black pupil domed epoxy eyes. Just a little flash.
For outer Harbour and inshore, um, a quarter ounce ultra minnow head, forged 2/0 wide gap short shank 90 degree eyed hook. All white like the flats/estuary jig. Bit more flash. Or, and this has worked in cold and tropical water alike: chartreuse glow head, oversize eyes, red thread, white bucktail, with a mix of silver and gold flash. Really can't decide.
Close smallish pelagic water and deeper jigging: One ounce bullet head, 4/0 wide gape short shank forged hook, 90 degree bend. Colour scheme like the inshore minnow, either all white or chartreuse glow/red thread/white bucktail. Stick on large eyes placed on the thread so I can pretend the jig looks like a squid. Quite a bit of flash.
For the trout in shallow water, a 1/32nd round head with sides filed down to fit smallest bug eyes, on a no6 medium bronze wire 90 degree bend Aberdeen hook. Black head, a body of peacock hurl, black rabbit tail with a strand or two of bronze flash, maybe. Then again I only fish one river and still learning, doesn't matter what jig on the line when I cast for half an hour at an underwater rock.