Technical Header paint/coating

Curious as to what people are using for header paint these days. I went all over town today, and even checked other store's inventories. Seems everybody has a spot for VHT brand flat black, but they are all out of stock. One guy at my favorite independent store told me paint was hard to come by these days.
I had a set with the factory installed ceramic coating, but they didnt hold up very well either.
Looking for suggestions. Not far from just putting them on and letting them rust.

 

Hardware store Rustoleum bbq grill paint.

 

I've been using this for years...no problems with it.

 

This ^^^^^^. Stopped using header paint years ago, this paint holds up quite well, easy to touch up.

 

Cerakote air cured.

 

Ive put this on my header, was sceptical, but its lasted very well, as good as the day i applied it.
https://www.holtsauto.com/simoniz/products/high-temperature-paint/

 

Bbq paint, but when you start the engine for the first time let it run 10 seconds and shut it off wait a few mins. Repeat this procedure about 5 times to bake the paint in, then run it continuously.