If you live in a developed country, you don't need one. There is iron in a wide range of common foods, both naturally-occurring and artificially-enriched. "lucky iron" fish are useful for people living on subsistence diets.
* unless you have a chronic iron deficiency
Iron supplements are probably a better way to fight that, I'd think. Those are also readily available in affluent societies.
If you live in a developed country you're probably getting way more than your daily dose of aluminum and Teflon which should be zero.
You can also just buy to donate:
https://luckyironfish.com/collections/all/products/give-5-lu...
They might seem a bit pricey for what it is, but they operate on a "buy one, give one" model, so it's a pretty good deal considering that. They make a great gift for anyone in your life who needs more iron in their diet.