:salam2:
I agree that staying in the States provides a wonderful opportunity for dawa. It has for me and I hope the same for France from next week, Insha Allah.
My first choice would be Morocco as the atmosphere is nice, the people are very friendly and the food is by far the best amongst arabic cuisine
Unlike some other countries, they do not open the inside of the mosques to tourists so this is a plus, also. You can practise Islam to the fullest and wake up with the adhan every morning.
Second choice for me would be Malaysia or Indonesia - I have never been there but from the people I have met, they bring a smile to your face and they practise true Islam without hypocrisy, in my opinion but Allah knows best