Choosing University - What a problem

Hi everybody, well, after thinking it for a will I’m going to try to apply for the Huayu scholarship if everything goes fine. I know there are a lot of topics about how to choose an university but after researching I got more and more confused. :smiley_cat: so I want to ask you about what place would be a good one for learning chinese. I’m not very interested in big cities, places where are lot of expats or a really , REALLY hot summer. Better if it is not a very expensive place.
I though about Kaohsiung, Hualien , Taoyuan and Taichung. What can you tell me about them? Did you have any good experience in one of them and wich university did you choose?