Have a look for in-line lure singles, made for lures and have a good hookup rate.

I prefer singles on all my casting metals as I fish heavy reef areas often and lose a lot of gear. With singles you get snagged a lot less and therefore lose less lures

...will stock in-line singles (eye turned 90°), in whatever size you need. Definitely the go for salmon/herring, and better than trebles for yellowfin whiting, although I use assists for them.

My personal preference is trebles for tailor. They slash wildly at a lure, maybe even a sideswipe, and my theory is you need as many hookpoints as possible in that scenario. 

Singles are better also in that, they snag up less, as previously mentioned, less likely to pick up weed during your retrieve, and of course, way less damage to you, as well as the fish if you're planning release.

Decoy in lines mate is what I use singles are a must for catch and release tailor salmon ect 3\0-6/0 As for herring 5-10 gram metal with a upgraded small sharp treble I think the assist hook set up would work well on the hezzas also

I think the single hook is the way to go if you have catch and release in mind, less damage to the fish and less chance of hooking yourself.

 Ethan, pop across from Dardanup to Treendale. We stock a large range of Decoys and other brands. Rapala lures are already to go with singles and are  stronger lure than the smilin jack for only an extra $9

 i change all my lures to singles these days.  Less damage to the fish, less chance of getting caught in the landing net, and less chance of damage to myself!

Just make sure to use good split rings between the attachment point and the single.

 Another note:

 You can generally use a larger single hook than trebles to replace the stock trebles on lures so long as they don't tangle with each other.

 Some lures have pretty sensitive buoyancy and if the single is too light, it will not perform optimally. 

 If you are wanna save some $$, use your J hook but 2 split rings to align the orientation of the hook against the lure's body. In many cases, 2 split rings are too many and can cause your hooks to fowl on the lure itself or another hook.

Some singles that I use:

 Decoy plugging singles ( Looks like J hooks with inline eye)

 Owner S-125 -works great on trolling and heavy sinking minnows

 BKK Diablos for poppers & stickbaits (large)

 Mustad Kaiju inline singles. (cheapest!) Saw them in tackleworld sometime ago. I have tested the Mustad Kaijus in previous salmons seasons - works a treat . Even if the fish engulfs the lures, it does minimal damage to the fish. They were used in minnows, poppers & metal spoons.

 Decoy sergent singles - I didn't have luck with them so stop using. Put them on my Jackson Pintail 56g- went through several mackies with multiple slash marks without hooking up. Since then I stop using them.

I've also found rigging a single on a short length of Dracon (as in a jig assist hook) and having it an inch or so behind the lure works well on salmon.  Helps when they jump as they lose the leaverage to throw the lure.  I know someone who uses 3 split rings to the hook for the same reason.

 I changed a few of mine to Mustad Hoodlums. They worked well too.

 Go buy cheap pre rigged assist hooks (for micro jigging )

remove trebles and run a single or even double assist hook at the back of your lure 

will smash it, and as someone in here told me to do look in Bargin bins at front of most tackle stores and you'll find assist hooks often

Not trying to high jack the thread. But is there a quick way to to replace split rings? Using a pair of pliers is proving to be a long slow process.