What Strings To Use On A Black Austin Bazaar Guitar?

You really only have 2 choices, and they are:

Nylon Strings
The Nylon strings look a bit like thick fishing line. These strings can be stretched quite easily and tend to be easier on the fingers when playing your instrument. People who play folk music songs often use Nylon strings. This type of string needs to be adjusted a bit more often than Steel strings, especially when new.

Steel Strings
If you are buying a set of Steel strings, you will notice that 3 of the packets of these strings look more like fine wire. The other 3 thicker ones are used for the lower notes. These are more often steel wire wrapped around a central nylon core, so they are actually a hybrid of Nylon and Steel. These strings give a nice crisp sound to the high notes but are harder on the fingers when first starting out playing the guitar.