Shallow drop bar work the best, short reach to hood, and a shallower drop to make riding on the drop more comfortable;
The other option is the classic shape randonnees handlebar like the Nitto Noodle bar which have a curve on the flat section, those were very popular for cyclotourists back in the day and still are despite the advance in handlebar design (like the shallow drop one above);
You can find out more choices by checking this topic out;
Shallow drop bar work the best, short reach to hood, and a shallower drop to make riding on the drop more comfortable;
The other option is the classic shape randonnees handlebar like the Nitto Noodle bar which have a curve on the flat section, those were very popular for cyclotourists back in the day and still are despite the advance in handlebar design (like the shallow drop one above);
You can find out more choices by checking this topic out;
http://www.lfgss.com/thread50428.html