Use them only if you must, because the good ones are way more expensive than food.
I use cold processed organic hemp protein mostly.There is also whey protein made out milk from grass-fed cows.
Protein powders are highly processed. This processing adds toxins (xenoestrogens) especially when processed at high temperatures (isolates are the worst). Stick with protein concentrate, stay away from isolates.
In addition, the cheapest most affordable protein powder is whey protein made from animals raised in conventional factory farms. Thus, they carry over all the "good stuff" (such as hormones and anti-biotics, GMO and pesticides from grains).
Next it's the additives, flavors etc. Another major source of xenoestrogens.
The easy way to figure out the amount of additives is to look at the label on the product and do the math. You see how much a scoop weighs , then add the content of proteins, carbs, fat and the rest is additives. It can be as high as 10% or more!
The xenoestrogens are not killing you overnight, but you can think of them as tabaco cigarates on steroids.