Stay away from aluminum frames they get hot and generate heat into the room.
One on the largest manufactures of glass is in Ocala and make the best solar glass used their
Solar 366 glass on my last home the lanai faced south, no extra AC added just open the sliders (in fact temp removed them).
LoĒ3-366 Glass | Cardinal Glass Industries
Custom windows was a rip at that time, can't recommend anyone I did the windows myself.
That glass made all the difference.