Here is my plan. Any comments are appreciated.
I like the following locations for my first few cities.
The N city grabs the deer and it can work two FPs.
The W city grabs the oasis and it can work each of the FPs.
The SW city grabs the clams and the cow and it can work two green riverside tiles for Istanbul.
The SE city can work the cow (if it is settled after the SW city) and one FP and it will eventually grab two ivory tiles.
The only city needing some culture is the SE city. But I can wait for a library so there is no need for Mysticism at the moment. So the only technologies I need are these: Hunting, Fishing, AH (all of them to improve resource tiles), probably Archery (it seems too risky to wait for horses and/or copper), BW (for whipping), Writing (to whip libraries).
It is tempting to research BW now and whip my first settler. But then I could be overwhelmed by barbs. Therefore I think it is much safer to research Hunting -> Archery first. Only the next technology is probably BW. I also think that I can afford to grow Istanbul to size 5 before starting the first settler. As I cannot whip the settler, I want to work mines (for the imperialistic bonus). So after constructing the cottage, I will mine the riverside PH, then the green hill and then the other PH. I want to build at least one archer and another worker before the first settler. The next city should grab the deer (no need to construct roads).