I am trying to add stringers on the skins of an aircraft's wing as well as fuselage, for the same reason why they are present in most of the aircrafts i.e. to resist bending (and a possible buckling scenerio when subjected to aircraft loads during flights) by adding stiffness to the structure. However, I am not sure what type of stringer should be used since there exists alot of variations, and some of them are shown in the picture below.
Since there exists so many variations, it makes me believe that some specific benefits are associated with each of these variations, when subjected to a certain situations. So what things should I consider while making the optimum choice for the stringer shapes? In which cases will each stringer shape prove to be fruitful than rest of the stringers? How should I decide the locations of these stringers within the top and bottom skins of the aircraft's wing and fuselage?
P.S: I can conduct a FEA for the wing + various shapes of these stringers, but it will take too much time. I believe there exists a rule of thumb for the choice of each stringer shape depending on somethings.