Mustad made a hook years ago, which was nothing more than a bent 34007. They designated it a 34005. Frankly the bent section was bent a bit farther than I like. Only a slight bend was needed. If you find any of them, they're still a pretty OK hook for tying on.
I believe I saw some others recently too, perhaps Tiemco, but not sure about that.
Before Mustad came out with a bendback hook, I also used to do as brookfieldangler and sit & bend the hooks with pliers. The older stainless hooks, 34007 or the longer 34011 worked great, as the metal was not so hard that they broke easily. Newer, better hooks with harder tempering might be a problem. I broke enough of the older style hooks.
Now, I rarely even bother with bending hooks. I found that most any straight shank hook would work fine even without the front bend. Since I tie most with bucktail, it's buoyancy aids in keeping the fly inverted, as long as the hair is tied inside the bend of the hook.
I also tie them on another hook that Owner made. It's a hook that was intended for plastic baits & is now discontinued, but it had a very similar bend in the front section of the shank. They called it a "Longneck". This hook came with a small cone shaped piece of plastic on the shank, that was used to lock a plastic bait onto the hook, to keep it from sliding. That little cone also works well to aid in propping up materials, or is easily removed. The only draw back to this hook is it's not cheap & was only made in a black nickel finish, so is not as corrosion resistant as a stainless or tinned hook. Still it's an extremely strong & sharp hook, and well suited for freshwater fishing. Again, it's another hook that should you find them, is worth tying on!
I found a tackle shop awhile back that was closing them out for 79 cents per pack, in size 2 & 1, and purchased several packs.
Here's a fly I tied on that Owner "Longneck" hook. Not a typical bendback, but I'm sure you can see how well this hook fits the style.