It highly depends on your use for a rental car. If it is for simple commute, point A to B, BlueSgG would suffice. If you are bringing your dog out, CarClub would be a good choice as their cars are pet-friendly. In summary, it boils down to your activity for the day. We have written an article about rental car platforms along with their pros and cons to suit your purpose of the day.

https://www.motorist.sg/article/1249/car-rental-cheat-sheet-2022-edition