I understand your situation. I have been in countries where I was dependent on a contact for verbal understanding and speaking. I learned a few important phrases to help.

You have not mention the language you need to understand. Being able to read and write puts you at an advantage from most people not speaking that language.

Even google translate that can be used on a low price Smartphone would be helpful. You could write in the phrase you wanted to speak and the translator using wifi could speak the words.

That's the most cost effective software translator I can think of, without paying someone.

On the internet, you could determine if there are any fellow countrymen/women living nearby who would have suggestions as well.
You could try researching a room rental company that organizes the renter to find accommodations. Sometimes, you will come across English speaking people, either the renter or person letting out the room. Then, they may be able to give you some ideas on how to help you out with possible local contacts.