The best protocol for fasting is dependent on your bio-individuality and specific goals. If your primary goal if fat loss or improved overall health any of the listed fasting protocols can be useful tools.
If you are new to fasting start with intermittent fasting or fat fasting. These fasting protocols are easily implemented into your lifestyle and require less will power to sustain.
If you have successfully experimented with IF and fat fasting you can experiment with alternate day fasting, extended fasts, and dry fasting. These fasting protocols all have tremendous benefits.