How to change location of AVD (Android Virtual Devices) files to external SSD?
1) There is a solution here: Move Android Studio Virtual Devices to Another Hard Drive on a Mac
. I will outline it later.

2.A) I am using Linux but my emulator is found under the Android SDK folder:/mnt/DATA/Android/Sdk/emulator (ON MY NVME M.2 BOOTABLE SSD) and my AVDs are located in /mnt/DATA1/.android/avd (on my 2ND SSD) and are accessible to Android Studio and the AVD Manager through the Symbolic Link to /mnt/DATA1/.android/avd stored in my ~/.android folder  (ALSO ON MY NVME M.2 BOOTABLE SSD). 

2.B) I copied the avd Folder from ~/.android to my Prefered Location, renamed he UNWANTED avd Folder avd.OLD (just in case), created a symbolic link to the desired avd folder, and copied the symbolic link to the ~/.android directory with the name avd. 

2.C) I also ensured the Paths in the ini files point to the Physical location of the AVDs. for example: path=/mnt/DATA1/.android/avd/3.2_HVGA_slider_ADP1_API_29.avd