4 verses have
best
in Edition Clear Qur'an by Talal Itani / Az-Zumar (The Groups)

39:18Those who listen to the Word, and follow the best of it. These are they whom God has guided. These are they who possess intellect.

39:23God has sent down the best of narrations: a Scripture consistent and paired. The skins of those who reverence their Lord shiver from it, then their skins and their hearts soften up to the remembrance of God. Such is God’s guidance; He guides with it whomever He wills. But whomever God leaves astray, for him there is no guide.

39:35God will acquit them of the worst of their deeds, and will reward them according to the best of what they used to do.

39:55And follow the best of what was revealed to you from your Lord, before the punishment comes upon you suddenly, while you are unaware.