Which IHM location is better if rank 3707
As per your rank it's difficult to get top 3 collges. But you can try IHM Kolkata, Hajipur, Shimla, Bangalore, Chennai etc. Mentioned IHM are best suited colleges as per your rank but give priority based on your choice, preference and future. Before applying first list out your preference or priority according to that apply.
All the best for you future.
As per your rank you don't have chances for ihm Pisa or mumbai. However you may get, Bhopal, Gwalior, Kolkata, Chandigarh.
During counselling lock the ihm according to your preference. And lock it carefully your first ten preferences should be according to your convenience.
Goodluck