If your budget allows, you can consider hiring an individual guide. For instance, a guide can provide you with a 2-3 hour tour of Geneva for 200-300 CHF.
If you're looking for a more economical option, you can visit the tourist office located at 18 Rue du Mont-Blanc, near the train station. There, for 18 CHF, you can get a map and an audio guide in Russian, which will take you on a tour of the Old Town in a couple of hours, including stops at cafes and shops. Additionally, bus tours of Geneva are available starting from 50 CHF.
A popular type of tour involves excursions to the outskirts of Geneva, including places like Lausanne (known for Switzerland's most picturesque vineyards), Montreux (where Vladimir Nabokov lived), Chillon Castle, or Mount Saleve.
The cost of "off-site" excursions from Geneva typically ranges from 300 to 500 CHF. There are also a variety of unusual excursions available, including a bike ride through the suburbs, where you can capture typical "Alpine" photos of Geneva with green meadows, snow-capped peaks, and picturesque Swiss villages. Additionally, you can enjoy a gastronomic excursion delving into the world of fondue and chocolate or embark on a shopping tour (expect to pay around 40-120 CHF on average).