Choosing a mini type single head embroidery machine can be a daunting task, but there are a few factors you can consider to help make your decision.

1. Purpose: Consider the purpose of the machine. Will you be using it for personal or professional use? Will you be doing small projects or larger ones? These factors will help you determine the size of the machine and the features you need.

2. Size: Mini type embroidery machines come in various sizes, so consider the space you have available for the machine. If you have limited space, then a smaller machine would be a better fit.
   

3. Brand and Model: Research various brands and models of mini type single head embroidery machines. Read reviews, ask other embroiderers for recommendations and compare features. Make a list of the machines that meet your requirements and budget.

4. Features: Consider the features you need for the type of embroidery work you will be doing. Look for features such as automatic thread trimming, built-in designs, and easy-to-use software.

5. Price: Determine your budget for the machine. Mini type single head embroidery machines can range in price from a few hundred dollars to several thousand dollars, so it's important to know what you can afford.

6. Warranty and Support: Make sure to choose a machine that comes with a warranty and good customer support. This will ensure that you can get help if you have any issues with the machine.

By considering these factors, you can make an informed decision when choosing a mini type single head embroidery machine that meets your needs and budget.