Best leaf cover bell peppers?

[horticultor]

I've had very good success with several types of peppers (both sweet and hot) this year. My bells (Red Knight, Early Sunsation and Gourmet) have set and matured amazing numbers of fruit, but sunscald has ruined the vast majority. Can anyone recommend particular varieties of bells that have better leaf cover for Central Texas? Or will it be necessary to grow under shade at any rate?