I sent David the following email last week privately...

Dear David,

1. On the following page, scroll down to "Syria" and you will see
lookups for bris records, marriage records and more. Not all were
recorded, but many were. Haleb (Aleppo) was a vilayet consisting of a
few areas including Aleppo, Kilis, Anteb and more which many are not
recorded in those databases.
http://www.sephardicgen.com/databases/databases.html
2. JewishGen has a cemetery database with many of the tombstones >from
the Aleppo Cemetery. You can browse them by specifying Aleppo as the
city and without putting any names in the name fields.
3. I have much information >from Aleppo in my trees that I have done for
myself and others. I also know people that have specialized in some
families. If you let me know some names that you are researching, I may
be able to help you or point you in the right direction. There are some
books with records too.

Best wishes,

Jeffrey Levy

---
From: <sciamma@gmail.com>
Date: Fri, 15 Jul 2016 11:24:35 +0300

Following David Nesher's plea and questions about Aram-Suba research
possibilities, are there any persons capable of giving us a comprehensive
list of research possibilities online or otherwise ?
Thgank you David
Sciamma(chamma) isaac