Work with your window supplier.

All glass has a greenish hue (not a tint) to it. The Low E coating exacerbates this somewhat. Low E coating is definitely a requirement by all codes in the US now. You need to figure out what coating is required by your local jurisdiction, double or triple silver. The triple would typically have a bit of a darker green hue (again NOT a tint, this is nothing added to the glass like a tint it is just inherent in the glass).

All windows with have a green look to them, as that is the natural color of glass with iron in it. The Low E are a requirement, and you do not even notice it any more than you notice that all of your other glass things in your home have a greenish hue to it. Like your shower doors, or glass table, etc.

Do you already have a window company in mind that you want to use? Possible options available to you would depend on the company you are using, but if you are okay with or looking for darker glass, then there are tinted LowE options (as mentioned above, standard coatings are not tinted) that will block more heat and light than the standard coatings with gray or other more neutral color appearance. Once again, availability is all about the window company that you choose.