The F-86, mig-15, Dassault Ouragan The b-1 and tu-160 Concorde, tu-144, 2707
The low wing and T tail with two engines at the back. (CRJ, dc9)
The 'standard' shape with the mid aircraft wings, and vertical and horizontal stabilizers at the back, used from the E170 to the a380.
And while many general aviation craft are low winged or differ from a high wing tricycle single engine design, most seem to stick with that formula as well.
For some of the odder shapes, the question is 'industrial espionage?' but in the greater context, is it simple convergent evolution in that there are only so many shapes which are functional and useful so most things take on that general shape?