Best Alignment of String B in a Substring of A -- Bioinformatics

I have two strings A and B, let's say

A = AATCGGATATAG
B = CGATA

Some of you may know two types of alignments:

• Global Alignment
• Local Alignment

But I would like to implement an alignment that takes the best whole substring of A which, if aligned with B, yields the best alignment

For example:

A,B -- Alignment algorithm --> AATCGGATATAG 
                                  CG-ATA

So far I've been using the Smith-Waterman Algorithm

Does anyone know any suggestions to solve this problem?

Thanks in advance!