list1 = [[1, 2], [3, 4], [5, 6]]
list2 = [['a', 'b'], ['c', 'd'], ['e', 'f']]
zipped_list = [list(zip(row_a, row_b)) for row_a, row_b in zip(list1, list2)]
print(zipped_list)
'''
run:
[[(1, 'a'), (2, 'b')], [(3, 'c'), (4, 'd')], [(5, 'e'), (6, 'f')]]
'''