Gardabani is 41° 28′ N, 45° 6′ E. The relevant UTM zone for places between 42° E and 48° E is UTM 38N, EPSG:32638. So this is a possible CRS you can use. However, depending an what you want to do, there are other, better, choices.
You can look up and search for CRS and EPSG codes here: https://epsg.io/32638 or https://spatialreference.org/ or https://georepository.com/crs_32638/WGS-84-UTM-zone-38N.html
Looking up at these sites for "Georgia" is a little bit tricky since there is a US state with the same name, so be sure to pick the "right" Georgia (or look for Armenia and than compare which of these is valid for Georgia as well).
If you look in georepository.com, you can select the place you're interested in on a map to get a list of CRS for this area on the globe: