If you decided to visit Kyrgyzstan, you will also make a decision to use professional guide's services or not. You can just choose an English speaking driver but in this case you need to know that they do not do excursions and give explanations as long as they are able to do that. They can only take you from one place to another, show you the restaurants and help with checking-in to the hotel. Of course they try to explain things but their vocabulary is not always enough to form a normal phrases.
Concerning guides, there are a lot of English speaking ones while those speaking Spanish, Italian, Japanese, Chinese etc. are very rare. So if you need one of them you have to book them in advance.
In Kyrgyzstan only escort guides are common, there are local ones in Osh. For example, if the tour starts or ends in Osh and you get there by plane, it is more reasonable to use a local guide's service. Because if a guide from Bishkek accompany you till Osh, you also pay his flight back home. If the itinerary includes driving from Bishkek to Osh, your escort guide will accompany you throughout the country.