We used Sport Options for Moldova last time there, and very well organised. We had to sort our own hotel and all transport but it was fine. Just recently went to a Georgia with Wonky Sheep and they were far more impressive. All communication was very good and swift, regardless of in or out of normal business hours, they had 3 staff on the flight and in the same hotel should you have any issues. Transfers to/ from the hotel in Georgia was also very organised, head counts, set busses for everyone etc so spot on.
6 of us have booked their Euros full trip as we joined their club after Georgia too. Will likely use them for nations league next year if there is another awkward city to get to.