The word(s) "best" appears 144 time(s) in 132 verse(s) in Quran in Muhammad Habib Shakir translation.

(21) Say: If that which you desire to hasten were with me, the matter would have certainly been decided between you and me; and Allah best knows the unjust.

(22) Surely your Lord-- He best knows who goes astray from His way, and He best knows those who follow the right course.

(23) And what reason have you that you should not eat of that on which Allah's name has been mentioned, and He has already made plain to you what He has forbidden to you-- excepting what you are compelled to; and most surely many would lead (people) astray by their low desires out of ignorance; surely your Lord-- He best knows those who exceed the limits.

(24) And when a communication comes to them they say: We will not believe till we are given the like of what Allah's apostles are given. Allah best knows where He places His message. There shall befall those who are guilty humiliation from Allah and severe chastisement because of what they planned.

(25) And do not approach the property of the orphan except in the best manner until he attains his maturity, and give full measure and weight with justice-- We do not impose on any soul a duty except to the extent of its ability; and when you speak, then be just though it be (against) a relative, and fulfill Allah's covenant; this He has enjoined you with that you may be mindful;

(26) O children of Adam! We have indeed sent down to you clothing to cover your shame, and (clothing) for beauty and clothing that guards (against evil), that is the best. This is of the communications of Allah that they may be mindful.

(27) Are these they about whom you swore that Allah will not bestow mercy on them? Enter the garden; you shall have no fear, nor shall you grieve.

(28) And if there is a party of you who believe in that with which am sent, and another party who do not believe, then wait patiently until Allah judges between us; and He is the best of the Judges.

(29) Indeed we shall have forged a lie against Allah If we go back to your religion after Allah has delivered us from It, and it befits us not that we should go back to it, except if Allah our Lord please: Our Lord comprehends all things in His knowledge; in Allah do we trust: Our Lord! decide between us and our people with truth; and Thou art the best of deciders.

(30) And We ordained for him in the tablets admonition of every kind and clear explanation of all things; so take hold of them with firmness and enjoin your people to take hold of what is best thereof; I will show you the abode of the transgressors.