Most 'techs' at any garage know no more about how to find unwanted current drain as you do.

You are better off learning how to find the problem yourself than trying to find someone to do it for you. The ONLY way to KNOW what is going on, is to MEASURE the current flowing.
You can yank the alarm, remove light bulbs, etc., all you want to - mostly, it's a waste of time. Keep in mind that battery will tolerate being drawn down to near zero volts only a few times before it is ineffective at filtering the DC supply of the car. Get this fixed or keep pulling the battery cable until you do!