You will probably want to do some variant calling on the bam files. This may include SNPS, fusions, amplification or deletions.
There are many tools to do this. Searching for these tools is straightforward:
https://www.google.com/search?q=germ...g+on+bam+files
You may want to use favorite, known tools already used at your organization, so ask around. A new tool may require some non-trivial installation.