The phrase "be a go" is commonly used to refer to things that are worth trying or giving a chance. However, there are various synonyms that can be used in place of this phrase to convey the same idea. Some of these synonyms include "be worth a shot," "be worth a try," "be worth exploring," "be worth attempting," "be worth the effort," and "be worth pursuing." All of these phrases suggest that something is potentially valuable or worthwhile, and that it deserves consideration or attention. Using synonyms for "be a go" can add variety and depth to your vocabulary, making your language more interesting and expressive.