The most interesting sights are best explored in a private vehicle with high ground clearance. Renting a car in Bishkek or at the airport offers flexibility that a guided tour lacks. For more challenging terrain, choose a four-wheel drive SUV. For example, check prices on Kyrgyzstan car rental at
https://getrentacar.com/en-US/kyrgyzstan The key is to plan your route in advance to avoid any problems.