Swift CVT dlx is a hot item with great fuel average.
City 1.2 or Yaris can also be considered if you want a bigger trunk but will sacrifice a bit on fuel economy.
Avoid imported japs as you cannot source parts for them unless you are ready to spend weekends in scrapyards. Even then some items cannot be found and the used kabli parts are exorbitantly expensive.
I used to suggest imported japs when local cars did not have any safety features like airbags, ABS etc. But not anymore.