What are the healthiest eggs to buy?

I'm curious, when it comes to eggs, which ones are considered the healthiest to purchase? Are there specific brands or types that are more nutritious than others? And what factors should I consider when making a selection, like the chickens' diet or the farming practices? Additionally, are there any potential health risks associated with certain types of eggs that I should be aware of? Ultimately, I'm looking to make an informed decision about the eggs I bring into my home and consume.