F-150 best add on mirrors for this shape of mirror

I am going to recommend the OP go to https://www.ksource.org/ and spend some time on their website. Ksource is a manufacturer of mirrors, and nothing else. They are OEM to all of the car manufacturers, so the products you get are generally the same as the ones you get from the dealer or manufacturer. Somewhere in their website they do have a place to plug in your make, model, year, etc and it will give you choices of different mirrors.

Charles