I need a small and fuel-efficient car for getting around Tbilisi for a few days. I don't want anything huge because parking is a nightmare. Is there a site where I can specifically find compact hybrids like a Prius?

Parking is definitely tight in the city so a compact is a smart move. There is a platform I used that lists a lot of economy options specifically for Georgia. They have several Toyota Prius C models available which are perfect for saving gas in traffic. You can see the different colors and years at https://tripbox.ge/ It is pretty straightforward to book compared to the big international chains.

That is exactly the model I was looking for. The Prius C is small enough to park anywhere. I will take a look at their inventory right now.