In Tunisia, an increasing number of hotels have a Russian-speaking employee at the reception, and in the centers of thalassotherapy there is almost always a Russian-speaking doctor. I recommend orienting on tours during off-season (from November to April) - their cost is noticeably lower than summer tours. Also you can successfully catch a burning tour in July - August, however, the hotel is likely to be very unpretentious: a "three star" designed for a mass tourist