Facebook Groups:
While you can find a flat with the help of English speaking agents in the FB groups or a Georgian/Russian speaking agent you somehow run into on your quest, you’ll have to pay them an extra fee and it is less convenient than speaking directly to the owner. However, if they help you find a good deal, 50 lari which is a usual price for this service is not too bad.
Apartments for rent in Tbilisi
Flatshare and roommates in Tbilisi
Real estate agents:
It is possible to meet real estate agents at the Dry Bridge in Tbilisi - these will show you monthly rental flats in Tbilisi downtown and if you speak Russian, it won’t be hard to make a deal with them.
Websites:
You can search for apartments here: