What is another word for method of choice?
Pronunciation: [mˈɛθəd ɒv t͡ʃˈɔ͡ɪs] (IPA) 
When it comes to describing the "method of choice," there are a number of synonyms that can be used to capture the idea of a preferred or optimal approach. Some alternatives to consider might include "preferred method," "ideal approach," "recommended technique," or "favored strategy." Other possibilities might include "optimal methodology," "most effective means," or simply "the best way to go." Regardless of which synonym is chosen, the underlying meaning remains the same: a method of choice is a preferred option that is believed to be the most effective, efficient, or practical means of achieving a particular goal or objective.
