Sep 20, 2023, 13:5409/20/23
The information you seek is usually found in the data base section, but having just looked myself, I find that it is not working, for me at least, or it has been lost in a purge.
I can tell you this, the 3 you mentioned are dropped, if you are lucky , by the Ubers and would guess by the chiefs.
You may be fortune enough to find them in lairs.